Blockchain makes money

To write this article about wallets, it is suggested that novices should take a look. The airdrop articles published in the future are about filling in the wallet address. I just mentioned what wallet address to fill in. It is impossible to have time to write a long article every time to introduce the installation and creation methods of each wallet.

At present, there are four wallet addresses that need to be filled in during airspace investment, such as eth Ethereum wallet address, Huo coin ecological chain heco wallet address, Qian'an smart chain BSC wallet address and wave field TRX wallet address. These four are common, and others that are not commonly used will not be introduced. The acquisition and creation methods are almost the same as these four.
When creating any virtual currency wallet, you should back up the mnemonic words and secret keys, otherwise the lost assets of the wallet cannot be recovered!!!
First introduce BSC and heco
1. Currency security smart chain - BSc, full name: binance smart chain. Although its wallet address format is the same as that of eth Ethereum, which starts with 0x... In general, the ETH wallet address cannot be used directly, otherwise it may not receive currency. The BSC wallet of coin security smart chain can be created by using the encrypted currency wallet app [trust wallet] under coin security, but I still recommend the unified use of TP wallet software, because this software can create many kinds of wallets of main network currency.
2. The wallet address format of heco, the fire coin ecological chain, is the same as that of eth Ethereum, which starts with 0x... But generally, the ETH wallet address cannot be used directly, otherwise it may not receive coins! Heco wallet of Huo coin ecological chain can be created by using the cryptocurrency wallet app [Huo Coin Wallet] under Huo coin, but I still recommend the unified use of TP wallet software, because this software can create many kinds of wallets of main network currency.
3. In addition, I want to explain separately that the coin security smart chain BSC and coin security chain are different, and the address format is also different. When coin coin BNB came out in 2017, it was based on Ethereum eth. At that time, of course, the address format was Ethereum address. Later, coin an issued its own chain, called coin an chain (bep2), with the address format beginning with BNB. Later, coin security issued coin security smart chain BSc (bep20). The address format is 0x... At the beginning, although it is the same as eth Ethereum address format, if the airdrop project requires to fill in the coin security smart chain BSC wallet address, you should fill in the coin security smart chain BSC wallet address honestly, otherwise you won't get the coin!
4. Frequently used wallet and im wallet (download address) https://www.token.im/ ）, wheat wallet (download address) https://mathwallet.org/zh-cn/ ）And all kinds of wallets.
As far as my personal usage is concerned, I usually use TP wallet app to create wallet addresses of various currencies, and my important personal assets are stored in IM wallet.
Next, let me introduce the creation and use of TP wallet app. TP wallet app is a wallet that can create almost all main network currencies. Therefore, airdrop likes to use this, which is convenient for unified management and does not need to install many app wallets.
Tokenpocket wallet, TP wallet for short
App download address: https://www.tokenpocket.pro/  
TP wallet app usage tutorial:
1、 Download and install the TP wallet app, open it, click [I don't have a wallet (create wallet)] to create a new wallet... ["I have a wallet" (import wallet)] is imported using the backed up mnemonic words or secret keys. If your mobile phone with wallet is lost, you can use this method to recover. If your mobile phone is lost and the secret key mnemonic words are not backed up, and the immortal can't find your assets for you, so give thousands of instructions, When creating a wallet, be sure to back up mnemonic words or secret keys!!!
TP wallet app usage tutorial (1)
2、 Select the type of wallet you want to create
1. As shown in the figure below, this app can create wallets of many currencies. If you click 1 to create them, you can create all wallets at one time. Including Ethereum, wave field, fire coin ecological chain and coin security smart chain wallet that we often use.
2. Enter at point 2 to create a wallet in a single currency. It's just for airdrop. It doesn't need to be so troublesome. Just click 1 to create all wallets. When you need to submit a wallet address, you can get the corresponding wallet address and submit it.
TP wallet app usage tutorial (2)
3、 How to switch wallets?
For example, how can I switch to the coin security smart chain BSC wallet when I am in the ETH wallet state?
Step: first click position 1 in the upper left corner, select (position 2) currency security smart chain BSC in the displayed currency, and then click bsc-hd on the right to enter. Similarly, switching to other wallets is the same.
TP wallet app usage tutorial (3)
4、 How to get airdrop through wallet authorization?
1. There are some airdrops that require wallet authorization before they can be received. In this case, first switch to the specified wallet state, and then enter the receiving address in the wallet DAPP address column, authorize, and receive the airdrop according to the prompt.
2. For example, the airdrop of a Huo coin ecological chain heco project requires the authorization of the wallet to receive the airdrop. The receiving method is as follows:
(1) First, switch to the state of Huo coin ecological chain wallet. You cannot authorize the airdrop of Huo coin ecological chain project under the BSC wallet of coin security intelligent chain.
Click 1, 2 and 3 to enter the fire coin Ecological Chain Wallet!
TP wallet app usage tutorial (4)
(2) Click the position shown in Figure 4 below to enter the DAPP application page.
TP wallet app usage tutorial (5)
(3) Enter the address in the DAPP address bar at the top, or click the code scanning method on the right to open it, and then operate according to the task requirements!
TP wallet app usage tutorial (6)
(4) After entering the browse, follow the corresponding steps and it will be OK.
PS: key point: a certain handling fee is required when withdrawing money from the wallet. Eth is used as miner's fee in eth main network wallet; BNB is required as the handling fee for money withdrawal in the BSC wallet of coin security smart chain; HT is required as the handling fee for miners to operate and withdraw coins in heco wallet of Huo coin ecological chain. These coins need to be bought by yourself in the exchange and then charged for standby, or buy them from others and let others charge them into your wallet. Among them, BSC and heco wallets require little handling charge for each operation. There is BNB or HT worth 10 yuan in the wallet, which can be used for a long time. But eth wallet is different. The handling fee of miners is very expensive!

Thousands of people tell friends who believe in using wallets that remembering keywords (public keys) and keywords are often so critical because they are the greatest authority to manipulate the blockchain technology property. Put your money in your wallet and send and receive it completely and randomly. No one recognizes your personal behavior of posting and transferring money.

Some friends think that saving money in a wallet is transferring money to a wallet. In fact, it is a very big misunderstanding. As is often said above, all coins in the world are stored by blockchain technology. The key role of wallet is to convert it into a private key word, receive the detailed address of currency, and help everyone interact with blockchain technology. For example, the account balance in your wallet is the account balance loaded into blockchain technology and likes your detailed address. If the money is stored in the wallet, the money is completely under your control. Even if you want to change the wallet, you only need to repair the private key words recorded in other famous brand wallets, and all property will be returned. It's easy to choose a wallet, but it's hard to choose a good one. Ouyi okex wallet is developed and designed by the world's top security elite team. It is suitable for mainstream currencies such as BTC and Eth and most ERC tokens. The cold wallet adopts a double-layer composite safety system without safety accidents. Let me think the most important thing is in Ouyi oke xhttps://www.ouyi.cc There are only three steps to back up the data of wallet private key word in the chain, which is also very friendly for novices.

Introduction to defi saver

Defi saver is a one-stop management solution for decentralized financial protocols. Today, CDP saver has become defi saver. The update includes some front-end changes, while our back-end and solidity teams continue to focus on automating CDP clearing protection and ratio management. These changes are:
1. With minor UI and UX improvements, you'll notice that the wallet connection program is different now. Instead of a separate page, users can now go to the makerdao or compound dashboard and select the wallet they want to connect from the drop-down menu in the upper right corner (if they are not already connected).
2. Fortmatic integration although this is mainly aimed at people who have not yet entered the Ethereum and encryption world, we think it is a very cool choice. Fortmatic allows users to use dapps and encryption without any extensions, such as metamask or hardware wallet, and only use your mobile phone and SMS.
Airdrop tutorial: Step 1: open the official website: https://defisaver.com/
Click the green "go to app" link to your wallet
Select the wallet account you want to link. This article takes metamask as an example, click the metamask icon to activate metamask
Step 2: exchange, search the currency you want to exchange and exchange
The above only provides the way to interact with the defi Saver, which does not mean that you can get the airdrop and the interaction cost is high. Interested and well funded friends may wish to spend some money to go through the process several times.

What is a cold wallet?

Cold wallet is a wallet that is not connected to the Internet, also known as offline wallet. The storage function of the hardware cold wallet is similar to the hard disk, but it needs to pay the password when trading, and randomly generate a strong seed password to obtain the private key and address, and each transaction is digitally signed and commented, which can be checked at any time; The online app can query the latest market and information online, open and transparent information, automatically detect the transaction confirmation, and never touch the private key, which can effectively prevent hackers from stealing.
What are the characteristics of cold wallet?
(1) The coins stored in the cold wallet are stored in a decentralized manner.
(2) All private keys are stored completely offline.
(3) After a private key is transferred to the online currency, it will be invalidated immediately and will no longer be used.
What are the categories of cold wallets?
Common cold wallets include "hardware wallet", "paper wallet" and "brain wallet".
Hardware wallet is the safest and not easy to damage wallet. Because it is an object, you can tell the person you trust most about its place. Also because it is an item, if you often need to access the private key, it is not very convenient to carry it with you. Therefore, as mentioned at the beginning, it is recommended to keep a large amount of asset private key that does not change frequently.
Paper wallet is to record the public key and private key on a piece of paper. However, paper is easy to damage and can be easily copied, which is easy to lose assets.
Brain wallet is to remember the private key without recording or storing it on any carrier. Just select a string of meaningful words or a paragraph, and then compile it into a private key through an algorithm. The disadvantage of brain wallet is that it is usually used as a password, such as your birthday, your home phone number, or the name of your pet. These may be intercepted by hackers to decode your private key through permutation and combination height operation.
At present, there are special small USB devices such as bank U shield or cold wallets such as smart watches. However, there are still some restrictions on the use of these devices. The most convenient and affordable is to make a cold wallet with an unused spare mobile phone.
How to create a hardware cold wallet?
Method 1: offline mobile phone + SD card
(1) Find an old mobile phone, restore the factory settings and download the wallet.
(2) Disconnect the network.
(3) Install the wallet and create a new cold wallet.
(4) Find 1-2 SD cards, format them, and back up the private key to the SD card
Mode 2: offline computer + USB flash disk
(1) Find an old computer, reinstall the system and download the local wallet.
(2) Disconnect the network.
(3) Install the wallet and create a new wallet file.
(4) Find 1-2 USB flash disks, format them, and copy wallet files to USB flash disk.

The detailed address of coin security wallet may be easy to find. You only have to log in and open the official website of coin security, and then look for the wallet at the top right. In the future, you can see it by clicking the wallet list. In addition, there is also a way to select currency and click in to recharge money. That one is your detailed address, If you don't master the basic knowledge of Qian'an, my proposal is to find some relevant videos on the Internet to master and learn and train. It's also very good.

Coin security wallet detailed address can you dig coins?
Coin security is not compatible with digging coins with their own wallet detailed address, which everyone must pay attention to. So how to use money to dig money? Next, I'll share with you the actual process example tutorial: 1 Log in to the official website of coin security, click [credit business] - [coin security and coin digging] to enter the homepage of coin security and coin digging.
2. Click [trading] to enter the trading page.
3. Select the selling currency and enter the selling amount.
4. Determine the currency and total number of purchases.
5. The system software automatically calculates the transaction price, service fee and sliding point. If you stay here for too long, please update immediately to get the latest quotation.
Transaction price: this price is a possible natural number. The final transaction price is the total amount of money in the currency pair pool during the swap period. Service fee: the cost of the transaction to the currency pool liquidity service provider. Sliding point: this transaction is likely to have an impact on the currency price in the pool.
6. Click [trading] to execute this transaction.
7. After successful trading, click [trading history time] to query the trading history time.
common problem:
When the price of a currency fluctuates strongly in the sales market, the market share holders of the currency pool are likely not to have the same use value gain value. Therefore, liquidity plus personal behavior is not a zero risk practical operation, and what they enjoy is not guaranteed profit.
At UTC + 000:00 every day, use the property in today's currency pair pool - the total amount added yesterday + the total amount cleared yesterday as the capital for calculating interest and the demand deposit interest rate of yesterday's currency pair pool currency to calculate the term profit. If a currency does not have a corresponding fixed-term commodity, it will not cause a fixed-term profit.
After a certain currency pair pool plus property obtains the market share of the pool (adding a separate currency will cause the corresponding service fee), it can be cleared in the same currency pair pool according to the market share of the pool. You can clear two currencies at the same time according to the proportion, or you can select one currency to clear. When clearing a currency, because you have to buy and sell another currency in the currency pair pool according to the proportion, you may incur transaction costs and will be deducted from the amount you can get.
The trading slip point will be adjusted in real time according to the sales market conditions. The web page indicates that the price does not need to be included in the final trading volume slip point price. If the slip point is too large and exceeds the warning information value, the system software will automatically stop trading.

Now it has been unified. It's the same address.

Erc20 charging address and eth charging address have been unified. Subsequently, if you recharge erc20 currency to eth recharge address, the system will automatically identify and account. At the same time, before the system upgrade, the original erc20 currency recharge address still accepts recharge and can be credited.
Usdt-erc20 is a usdt issued by tether TEDA based on the ETH network. The charging address is the ETH address, and the charging and withdrawal takes place through the ETH network. Usdt-erc20 uses erc20 protocol.
At the beginning of 2018, Ethereum network became popular, smart contracts were popularized in blockchain applications, and erc20-usdt appeared. Like omni usdt, using erc20 usdt also requires paying absenteeism fees, but the transfer speed has been significantly improved. Due to good security and fast transfer speed.
Erc20-usdt is widely accepted by the market. TEDA, the issuer of usdt, also began to give up bitcoin Omni and support more efficient Ethereum erc20.
Introduction to erc20:
Erc-20 introduces the standard of replaceable tokens, in other words, they have the attributes that make each token exactly the same (in type and value) as another token.
For example, in erc-20, the behavior of token is the same as that of eth, which means that any token following erc-20 rules is equal and the same as all other tokens.
Erc-20 (Ethereum request note 20) proposed by Fabian vogelteller in November 2015 is a token standard, which implements the API of token in smart contract.

EOS will end crowdfunding at 7 a.m. Beijing time on June 2, 2018, and the deadline for mapping is 6 a.m. on June 3. After that, all EOS tokens based on Ethereum erc20 will be frozen and cannot be transferred. After the EOS main network goes online, the network will be started through this snapshot.

It can be seen from the crowdfunding contract of EOS that the register function is used to map the public key of EOS main network and supports an EOS address within 64 bits. The main function of mapping is to convert your erc20 token into the rights and interests on the EOS public key address.
// Value should be a public key.   Read full key import policy.
// Manually registering requires a base58
// encoded using the STEEM, BTS, or EOS public key format.
function register(string key) {
assert(today() <=  numberOfDays + 1);
assert(bytes(key). length <= 64);
keys[msg.sender] = key;
LogRegister(msg.sender, key);
}
// Crowdsale owners can collect ETH any number of times
function collect() auth {
assert(today() > 0); //  Prevent recycling during window 0
exec(msg.sender, this.balance);
LogCollect(this.balance);
}
// Anyone can freeze the token 1 day after the sale ends
function freeze() {
assert(today() > numberOfDays + 1);
EOS. stop();
LogFreeze();
}
Advantages and disadvantages of exchange and wallet mapping:
We now see that many exchanges have supported EOS mapping, which has advantages and disadvantages. For Xiaobai users, it is a good choice to put them in the exchange. First, avoid the risk of private key leakage during mapping. Second, even if erc20 token is frozen after June, you can still trade shares (sugar sharing rights) through the exchange
However, for experienced players, the characteristic of blockchain is that only those who have private keys can have account control. Unlike bitcoin bifurcation, the private key of the EOS main network cannot be transferred from the exchange to the user. Your erc20 token will eventually bind only one EOS main network address. If you have no control over the private key of this address, the sugar sharing right in the future will not be in your hands. Now, many projects based on EOS will send candy to token holders, but the exchange will not put all candy on the shelves, which is a potential loss. At the same time, owning the private key can also exercise the voting right on the EOS master node and participate in community governance
Note: this tutorial is based on the official standard process of chrome + metamask. Please ensure your computer system security and turn on the firewall. This tutorial is not responsible for the leakage of private key caused by network security. The tutorial needs scientific Internet access. Please provide your own VPN and turn on the global mode
Preparation in advance:
1. Turn on the global scientific Internet and install metamask
Visit metamask IO official website
Get Chrome extension to enter the plug-in installation page
Install plug-ins
2. Close all chrome plug-ins except metamask, and enter in the browser chrome://extensions/ Close
3. Import the private key through metamask or create an Ethernet address (remember to save the private key). This address needs at least 0.005 eth to operate the mapping function. This address does not need to be stored in any EOS before token is frozen, so it is relatively safe. If metamask has been installed, you need to select the primary account to be mapped (checked)
Formal steps:
1. Access the EOS official website globally IO, the second confirmation did not enter the phishing website
2. In the middle and lower part of the official website, find and click Get EOS to enter the user terms interface
3. Agree to the terms, check all five checkmarks, and then continue
4. Enter the participation instructions in the middle of the page to prepare the contract interaction
5. Click Register to view the mapping English guide, which introduces the freezing time of token and the necessity of mapping
6. Select EOS token distribution below to enter the mapping Đ App interface
7. Enter the contract main interface, you can see your own Ethernet address and mapping (no EOS key registered), and the mapped address will display EOS public key
Make sure that the private key of eos-private is secure, and then click the eos-private key to close it before the operation
9. Enter the private key in the confirm private key column to check, open Wi-Fi, and click I have safe backed up my private key
10. In the pop-up metamask interface, the gas limit is set to 100000, and gas price can be flexibly selected according to the network situation. In the near future, 1 Gwei can be used to package the transaction within a few minutes, and then click submit to send the transaction uplink
11. Wait a moment. After the transaction is packaged, the EOS mapping has been completed, and your own EOS public key address can be seen in the main interface of the contract. To change the EOS public key, select change your EOS key, and then go back to step 8 to remap
Verify that the EOS public key matches the private key:
For accounts that have been mapped through imtoken, myetherwallet or other methods, if you are not confident about the accuracy of the private key, you can also verify the private key through the official website to check whether the mapped public and private keys of the EOS main network match
1. First enter the main interface of EOS token distribution in step 7, open chrome console: view → developer → developer tool (this step can close Wi-Fi offline operation), then enter the following code and press enter
function verify_ private_ key(_key) { var d = eos_ecc.PrivateKey.fromWif(_key); return d.toPublic().toString()}
2. Enter the following code in the console, replace the text between single quotation marks with your EOS private key and press enter. Then you can verify whether your EOS public key matches the private key
verify_ private_ key('Your EOS Private Key Here')
It is less than 2 months before the end of EOS crowdfunding. Please hurry up and map. Before June 1, the mapping does not affect the transaction of EOS token, nor does it determine the snapshot based on the number of EOS in the Ethernet address during the mapping operation, but only the number in the account after token is frozen on June 3. So before June 1, just fill the EOS into this Ethernet address.
Lao Bai, the author of this article, is the CEO of prochain (Prajna), a blockchain big data advertising platform. The team began to participate in the first phase of EOS crowdfunding. Prochain team is committed to building a transparent digital advertising data ecological platform. With the high concurrency of EOS, free users and other excellent features, we can realize the transparency of advertising data, achieve mutual trust among various roles of digital advertising at the lowest cost, and solve the pain points of digital advertising industry: settlement delay, data island, traffic fraud, data black box, user shielding and so on, so as to achieve win-win results.
Brendan Blumer, CEO of prochain White &amp; EOS
Prochain team will distribute no less than 20% of the total amount of new PRA candy to EOS holders after the EOS main chain is launched. At the same time, it will conduct snapshot mapping for PRA token holders and distribute the new PRA on EOS main chain in equal proportion. The detailed rules will be gradually released later. We hope that more friends who agree with our ideas will join us to build the first blockchain advertising ecology on EOS!

Imtoken - the digital asset wallet imtoken IOS launched by Hangzhou consenlabs, a blockchain start-up, was officially launched. This is the first Ethereum light wallet made by the Chinese team, which is self-contained and easy to use. Imtoken supports multiple asset types. At present, it supports eth, DGD, MKR, Rep, Dao, GNT and SDTV by default.

Imtoken is a very smart digital wallet to help you manage your eBay account and support a single button to add digital currency on Ethernet. In short, it is equivalent to Alipay on the Ethernet bar, storing your ETH assets and other assets here. In the application of Ethernet, more and more widely used, ETH as the token ICO more and more today, everyone should have and learn to use imtoken, and also support many projects in the imtoken crowd financing, now teach you how to use this Alipay's Ethernet, imtoke download and install imtoken login official website. https://token.im/  ; Download and install.
Android phones can be downloaded and installed directly. Apple phones can only be downloaded and installed after registering a foreign Apple ID (Hong Kong's can). Please don't worry about it here. Imtoken is definitely a safe and legal software. How to register an Apple ID in Hong Kong? Please Baidu yourself. If you can't search Taobao for "Hong Kong Apple ID" for 10 yuan. The seller will be very patient to teach you, After that, you can download imtoken in the app store.
After downloading the app, open the app and start creating the wallet
The first step; Open app to create Wallet
The second step; Create a name for your wallet and set the password (the password must be remembered and backed up. You can write it down in your notebook, because the password can't be retrieved or reset as long as you forget it)
The third step; Click Create wallet, and then the creation success will be displayed;
Step 4; Backup wallet; When your wallet is created, it must be backed up. Due to the anonymity of digital currency, if your mobile phone is lost and your wallet is not backed up, it is tantamount to losing your money. There are two ways to back up your wallet, namely; Export mnemonics and backup keystore
Step 5; The method of deriving mnemonic words; Click export mnemonic words - enter password - copy down your mnemonic words and keep them well (that is, some English words in the icon, record them in order). If you click Next and click mnemonic words in order, the mnemonic words will be removed. It is recommended not to remove them casually.
Step 6; Click backup skystore, then enter your password and click next
Step 7; You can export your wallet, export it in the following ways, and then back it up. It's best to put it in the USB flash disk and back up several more places. After the backup is completed, your wallet has been created.
The first step of how to withdraw money (similar to the so-called brick moving method);
open a connection https://bter.com/login Register your own account (if you haven't registered biter) user name, fill in your own mobile phone number or email, then set your capital password, verify your mobile phone number, real name authentication and other operations, and click your own personal user name to recharge RMB.
The second step; After registration, click RMB to start recharge; According to the tips of the website, you can operate step by step. When the RMB arrives, you can start buying currency and trading
The third step; Find the trading column of Ethereum, enter the price you buy (the specific purchase price depends on the market fluctuation), enter the quantity you want to buy Ethereum, and then click buy.
Step 4; Click recharge withdrawal and click digital currency withdrawal
Step 5; The last and most important step is to open your imtoken wallet app, fill in the collection address (collection code) of your imtoken wallet in the column to withdraw money, click a string of numbers (32-digit number letter combination) below your wallet name, and then you will see your collection code. Click to copy the collection address and send it to the computer or your mobile phone through wechat or QQ
Step 6; Open biter's account, fill in your collection address in the withdrawal interface (that is, the combination of copied numbers and letters, which is equivalent to your bank card number), then enter the number of coins you want to withdraw, enter the password and mobile phone verification code, click submit application, and then the withdrawal is successful
After waiting for a few minutes, you can open your imtoken wallet to check whether it has arrived. (normally, it will arrive within 20 minutes). The above is about the basic usage and withdrawal methods of imtoken wallet. For friends who have just come into contact with the coin circle, after reading this tutorial, they should know how to operate step by step according to the above steps, You will know how to use imtoken wallet and withdraw money!!
ICO is one of the important applications of virtual currency. It solves the opportunities for market capital to participate in projects or early investment of enterprises by avoiding legal supervision. ICO is full of opportunities. If you choose a reliable ICO project, it may be an opportunity for a sharp increase in assets. This opportunity may not be many, but it is still much more than traditional industries; ICO is also full of challenges. It may be normal for most ICO projects to fail to achieve the expected success. Not a few break after ICO in the market. Inadvertently participating in a project with pits is also a distressing loss.

What is tronchain wave field chain? It is a smart contract developed based on Ethereum technology chain. It is based on business logic and financial data information deployed at the height of Ethereum block; No server, no domain name, no app, no background, no trader, unique For a project without any manual intervention, all programs are structured on the Ethereum smart contract and operated through any decentralized wallet. Is a low threshold, low-risk, transparent and fair, can not be tampered with, completely decentralized financial management game; Once the business logic agreement (bonus system) is put on the chain, the rules of the game can never be changed and can never be stopped! 

Why do we want to do tronchain wave field chain now? 2020 is the era of traffic. We need to grasp a wave of business opportunities with the changes of the times. The performance of wave field chain: 1. Never upgrade from operation to now. 2. 24-hour timestamp. 3. No personal information is required. As long as there is a decentralized wallet. 4 No one can move any funds in the contract address. Now many people are happy to do centralized financial projects, such as platform currency, exchange currency and stretch currency → finally, they are cut into leeks, wave after wave, up and down. There are new tricks in Dangdang. As long as there are projects with human control factors, no matter how smooth your consultation line is, In the end.
。 Through understanding and analysis, a project and a business may be hot in the future.
If you want to make a lot of money, you have to make a choice and implement it when most people are not aware of it. Because the essence of finance is to earn time difference money.
Tronchain wave field chain -- one of the original decentralized smart contracts of all open source.
And anonymity protects the security of investors' personal information, while the transparency of tronchain's full open source protects the security of investors' funds.

Enter the website of bitcoin wallet in the browser to download a bitcoin wallet,

After successful installation, open the wallet, click start a new wallet or create my free wallet.
How to register bitcoin wallet triplicate
First enter your email address and then enter your password twice. Then enter the verification code.
Here we should pay attention to: the password should be more than 10 digits, and we must remember that if you lose or forget it, you can't recover it. It's equivalent to losing your money and you really can't get it back.
Click continue.
How to register bitcoin Wallet
Well, the wallet was created successfully. Print out the following tips or copy them to another safe place to save them. It may be of great use if you lose your password one day.
To mine bitcoin, you can download special bitcoin computing tools, then register various cooperative websites, fill the registered user name and password into the computing program, and then click the operation to officially start. After completing the bitcoin client installation, you can directly obtain a bitcoin address. When others pay, you only need to paste the address to others, and you can pay through the same client. After installing bitcoin client, it will assign a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. If the hard disk is unfortunately completely formatted, personal bitcoin will be completely lost.

Tether (usdt) is a currency issued using Omni layer protocol. Omni layer protocol is a protocol based on bitcoin blockchain network, which is equivalent to adding some attributes to bitcoin transactions to expand currency categories. We can use Omni layer protocol to issue tokens based on bitcoin blockchain network, It is thought that usdt is based on bitcoin block network, so the basic process of docking wallet is roughly the same as that of bitcoin.

The overall docking process of Omni wallet is as follows:
① Download and install Omni cores Wallet
② Configure wallet development environment
③ Get BTC on test network
④ Obtain Omni coins in the test network
1. Download and install Omni core Wallet
This demonstration is for Windows version. Except for different installation, the other docking processes of liunx version are the same:
Omni cores wallet download address: http://www.omnilayer.org/download.html
1-2 installation
(1) After downloading, click the EXE file to install. The installation options can be selected by default (pay attention to ensure that the hard disk capacity is more than 200g);
(2) After installation, click Run wallet (after opening the wallet, the wallet starts to synchronize the block)
2. Configure Omni wallet development environment
The wallet just installed is a linked official bitcoin network. We need to configure it into a test network and develop RPC debugging function;
2-1. Modify Omni wallet configuration file
(1) Find bitcoin The conf configuration file is under the folder of the installation directory data
Add the following parameters to the configuration file:
Regtest = 1 (stand-alone network) or testnet = 1 (connect test network)
server=1
rpcuser=duanpan
rpcpassword=duanpan916
rpcallowip=
43.249.137.***
rpcport=8332
txindex=1
datacarriersize=80
logtimestamps=1
omnidebug=tally
omnidebug=packets
omnidebug=pending
Parameter description (same as the parameters of special currency wallet year on year):
Testnet = 1 connect the bitcoin test network and regtest parameters. You can only open one of them at the same time.
Regtest: start the stand-alone test environment. 1 is on and 0 is off
Listen: enable listening mode. It is enabled by default
Server: 1 indicates that RPC instruction is accepted, and 0 does not
Rpcuser: the RPC user name used to access the wallet
Rpcpassword: the RPC password used to access the wallet
Rpcallowip: specifies which IPS can access the wallet through RPC
Rpcport: RPC access port
2-2. Save the configuration file and restart the wallet
Because Omni coins cannot be obtained for testing under the stand-alone network, only bitcoin testnet network can be connected to obtain test bitcoins and then Omni coins through bitcoins.
Configuration (specify user name, password and IP):
testnet=1
regtest=0
server=1
rpcuser=*********
rpcpassword=*********
rpcallowip=*********
rpcport=8332
txindex=1
datacarriersize=80
logtimestamps=1
omnidebug=tally
omnidebug=packets
omnidebug=pending
2-3. Test common instructions with command window
(1) Open the command window: click "help = > debugging window = > console" in the wallet interface
Common instruction API:
https://github.com/OmniLayer/omnicore/blob/master/src/omnicore/doc/rpc-api.md
3. Get bitcoin of test network
You can get the website of testing network bitcoin:
http://bitcoinfaucet.uo1.net/send.php
Query and test the website of bitcoin transaction and block generation on the network:
https://testnet.blockexplorer.com
Other websites for bitcoin related knowledge:
https://bitcoin.org/en/bitcoin-for-developers
https://en.bitcoin.it/wiki/Main_Page
4. Obtain Omni coin of test network
The process is as follows:
1. Generate bitcoin address getnewaddress
2. Obtain bitcoin from the test network to the address generated in the first step
3. Send bitcoin to the moneyqman7uh8fqdca2bv5yz8qvrc9iklp address through sendfrom. For each BTC sent, 100 Omni and 100 tomni will be obtained.
4. Then wait for block confirmation, and the generated address passes Omni_ Getbalance gets the received testomni amount.
Pit encountered in docking
1. Unable to query usdt token with propertyid 31
Solution: officially synchronize the block data for a certain time, and the test network can only jointly debug the API interface through Omni coin
2. Regtest network failed to get Omni coins
Solution: it can only be obtained through testnet. See the third and fourth columns of the article for how to obtain Omni coins.
3. When sending a transaction, the BTC balance of the sending address is insufficient to pay the handling fee
Error with selected inputs for the send transaction, code = - 206)
Solution: transfer BTC to the address where Omni coins are sent.
4、omni_ Listtransaction failed to query historical transaction
It's the default end block number. The default value is 999999, but the actual block has already exceeded this number, so the transaction information can't be queried.
Solution: query with parameters, such as:
omni_ listtransactions muPuXyRqLBRf8Xyj28d2As8ya4iaw8XWGe 10 0 0 99999999

MXC international station is a platform focusing on the exchange and exchange of blockchain assets, which was founded by the senior quantitative trading team of Wall Street, Japan and Europe and senior practitioners of blockchain through decentralized self-organization. MXC will provide users with more secure, convenient and intelligent blockchain asset circulation services, aggregate global high-quality blockchain assets, integrate the world's top security technology, and strive to build a world-class blockchain asset international station.

Download tokenpocket wallet (official website: https://www.tokenpocket.pro ）TP wallet, also known as TP wallet, supports a variety of cross chains. At present, it is a wallet with a relatively high share, and the operation is simple and convenient.
It can directly import bitcoin, Ethereum, EOS, wave field, fire coin heco, coin security BSC, Boca, KSM, okex chain, Iost and other main chain wallets.
Note: at present, Shib is issued in the main chain of Ethereum and can only be withdrawn to Ethereum wallet.
At the same time, ETH is required for wallet transfer as a handling fee. It is recommended that you prepare 0.1 eth for subsequent transfer or participation in activities.
Simple five step coin withdrawal Shib to personal wallet (take the coin withdrawal of Matcha exchange as an example)
The first step is to create or import Ethereum wallet
If you don't have an Ethereum wallet, you must save the private key and mnemonic words when creating a wallet, which is similar to the various password forms of your bank card.
After saving, any Ethereum wallet can retrieve your assets as long as there is an Internet. Remember to keep the private key / mnemonic words and never send them to anyone.
It is recommended to save the private key and mnemonic words (it is recommended to save them in combination):
1. Copy it on paper and put it in an absolutely safe place
2. Backup encryption with USB flash disk
3. Compressed encrypted network disk save
4. At the same time, back up a copy to your family
Managing your wallet is the first step in asset management!
Remember to save in multiple ways.
After downloading the TP wallet, you need to create an Ethereum wallet and save the private key and mnemonics.
After creation, if you have an Ethereum wallet, you can click to import your own Ethereum wallet, and enter a mnemonic or private key to restore the wallet.
Step 2: on the asset page, click ➕  No., add Shib asset
It is recommended to search Shib smart contract address and add it. Each Ethereum token has a unique smart contract address.
Shib smart contract:
0x95ad61b0a150d79219dcf64e1e6cc01f0b64c4ce produced by Lingmao Business School
After searching, click the "+" sign on the right to add assets
Step 3: after adding successfully, return to the wallet, click the Shib details page, click collection, and obtain the collection address and collection QR code,
Step 4: open the exchange, enter the asset page, find Shib, click the details page, and click [withdrawal]. Take Matcha exchange as an example:
Step 5: enter the quantity according to the prompt, paste the wallet address, or identify the QR code, and click [OK]
Note: be sure, be sure to repeatedly confirm that the wallet transfer address is consistent with the coin withdrawal address. After confirmation, click OK.
Note: it is suggested that if the number of shibs is large, you can withdraw money with a small amount of money first, and then withdraw all assets after no problem.
After the successful withdrawal, the arrival time depends on the congestion of Ethereum network. After the successful withdrawal, Shib will automatically transfer to your wallet, and you can go to Ethereum wallet to check the details.
The whole process is completed. Congratulations, your Shib really belongs to your assets. Congratulations on the success of coin withdrawal.

Wallet is the first door to the world of defi. Only by learning how to use wallet can we carry out real chain operation.

Just as everyone's money in the bank needs to be stored in the account, there is something similar to the "account" in the encrypted assets on the chain, which we call "address on the chain".
Wallet is a tool for you to manipulate the address on the chain and move the assets on the chain. So sometimes, we also call the address on the chain "wallet address".
If you have ever bought or sold digital assets in the exchange, you need to understand that your assets in the exchange are actually on the "wallet address" of the exchange. What you trade is only numbers, not "touch the chain".
But to use the defi app, you must learn to use your wallet.
We recommend using metamask mentioned in the first issue of airdrop express as the first choice of computer browser wallet. At present, all defi applications support metamask login.
At the same time, we recommend that you use the Chrome browser developed by Google, which is perfectly compatible with metamask.
Download method: visit the official website with Chrome browser: https://metamask.io
The download function is clearly visible on the homepage of the official website. Click to enter and select "Chrome" to download to the browser:
After downloading, click "start using" to start our journey of defi:
Create wallet to generate your first wallet address:
Create a password to log in to the wallet on the current computer.
Why emphasize "current computer"? Don't worry, it will be revealed later.
After this step, we will see a relatively unfamiliar concept: mnemonic words.
In order to understand this new concept, let's take the example of bank account as an analogy:
If you have experience in using online banking on your computer, you should remember that you need to enter a password to log in to online banking, and you need to enter it again before actual payment.
In order to remember, most people will set the two passwords to be the same.
The so-called mnemonics and the private key managed by mnemonics (you can't touch it now, just understand it as the same thing as mnemonics for the time being), which is equivalent to this login + payment password.
With it, you can log in to your online address and move your digital assets freely.
That's why matamask recommends that you back it up on paper and never store and send it over the network, otherwise the assets may not be gone one day.
What about the login password on the previous "current computer"?
It's just the screen lock of your computer.
Metamask does not store either of these passwords. If you change a computer and download metamask again, you can reset the login password on the "current computer", just like resetting a screen lock.
Then, according to your mnemonic, log in to the address on the chain.
However, if the wallet is in the login status, the mnemonic words (and the private key managed by the mnemonic words) are loaded by default, and there is no need to enter them again during payment.
So these two passwords should be kept well. If you log in your wallet on the computer and turn around and leave, the people next to you can transfer money even if they don't know your mnemonic words~
After you get the mnemonic, you will officially have the first address on the chain (where the little hand points to in the figure below). The address format is the combination of letters and numbers beginning with 0x:
Metamask is not an independent software, but a "plug-in" embedded in the browser. It doesn't bother users at ordinary times. When you need to use it, you can find it in the upper right corner of Chrome browser:
Next, you can fly freely in the world of defi.

Okex (www.okex. Com) is one of the world's famous digital assets international stations. It mainly provides spot and derivative trading services of digital assets such as bitcoin, Wright coin and Ethereum to users all over the world. It is subordinate to okex Technology Company Limited. When okex was founded, it received an angel investment of one million dollars from the entrepreneurial workshop established by the world's top investor Tim Draper. Mr. Tim Draper is also an investor in Hotmail, Baidu, Tesla and other world-class enterprises.

Mobile version:
1. First, you need to copy the address of the platform or wallet you want to mention, then log in to the official okex app platform (okex official website: click me to open), enter the fund interface, and click to withdraw money.
2. Click currency selection. If there is a currency you want to withdraw in the popular currency, you can click it directly. For example, if you want to withdraw BTC, you can click BTC directly below.
3. If the currency you want to withdraw is non mainstream currency, you can fill in the short code of the currency you want to withdraw in the search box, which can save more time.
4. After entering the currency withdrawal details interface, select the chain name, that is, the protocol. For example, usdt supports a variety of protocols: erc20, trc20, etc. if the selection is incorrect, the currency withdrawal operation will not be carried out. Some small trading platforms do not have automatic recognition function, and there may be a risk of currency loss. Then paste the addresses of other platforms you copied, enter the quantity, and select the accounts that can withdraw money (capital account, currency account, contract account). As long as there is a balance, you can withdraw money. Finally, click Submit. After okex releases money and reaches the network confirmed quantity, you can arrive at the account.
Computer version:
1. First log in to the official okex trading platform (okex official website: Click to enter), move the mouse to the asset management in the upper right corner, and click withdrawal in the pop-up interface.
2. Click to select the currency. If the currency you want to mention is popular, it is recommended to use the search function. You can click the popular currency directly below.
3. Select the available withdrawal network. If the currency supports multiple protocols, you must select it correctly, otherwise it cannot be received. For example, if you want to withdraw usdt to Huo currency, and the usdt recharge address of trc20 is copied in Huo currency, you must also select trc20 here, otherwise it cannot be operated. Click next after selection.
4. In the currency withdrawal information interface, paste the address you copied, enter the quantity, and select the account you want to withdraw, fund account, currency account, etc. all support currency withdrawal. Finally, click next, wait for okex to release money, and arrive after the network confirms that the specified quantity is reached

Is the newly bought bitcoin safer on the exchange or better in the wallet? Today, let's talk about whether the bitcoin you bought is put in the exchange or in the wallet. Everyone has different opinions on this question. This question is equivalent to whether it's better for you to put your money in the bank or take it in your hand. However, there is no absolute answer to this question, Just like preventing the risk of market decline, you may have some means to improve the safety factor, but you can't avoid all the risks, including where bitcoin is safe. To deal with this problem, you can only do it differently from person to person.

For the money hoarders, they are investors who hoard bitcoin for a long time and won't sell it in the short term. Their biggest feature is that they only buy and don't sell it in general. For these people, my suggestion is not to put it in the exchange or withdraw money from their wallet after each purchase, because most of the money hoarders are mainly in the form of fixed investment, The fixed investment is a process of adding up a little and making a lot. In the case of high probability, the number of bitcoins we buy each time is actually very small. For example, the number of bitcoins we bought about 1000 yuan a week was about 0.02. If we mention our cold wallet after each purchase, the final number of coins I will invest will be 2.5% less than now, That is to say, when you buy a bitcoin, there are only 0.975 left. As for the remaining part, it is a handling charge from the exchange to the wallet, because the handling charge for withdrawing coins in the exchange is generally 0.000 5 bitcoins, so each withdrawal requires so many handling charges.
For example, if you withdraw 0.02 fixed investment per time according to this handling fee, it is equivalent to charging me 2% every time. The accumulated figures are absolutely unimaginable. Therefore, my practice is to wait until the fixed investment bitcoin has accumulated to a certain amount, and then mention your cold wallet for storage at one time, because the handling fee for one bitcoin is the same as that for 10 bitcoins, or 0.02 bitcoins, It is almost possible to ignore the existence of handling charges and achieve the ultimate accumulation. As a money hoarding party, it not only achieves the effect of hoarding money, but also avoids the risk of collapse due to the emergence of black swans in the exchange.
The second case is for the novice Xiaobai who has just entered the circle, because most of them are novices who will ask this question. My personal suggestion is to put the currency on the exchange first for the following reasons:
1. Novices are not familiar with wallets and many concepts are vague. I saw in the comments before that many people can't figure out what hot money bags and cold wallets are, but I have to admit that these wallets of blockchain are really brain damaging. It's difficult for a newcomer to understand them. Once you lose your private key or are stolen by hackers, Then your chances of getting it back are almost zero.
2.99.99% of the cases, these exchanges will not have the problem of being unable to withdraw cash, because the business model of the large exchange has been formed, and it can receive handling fees almost every day, which can make a normal profit rate. It is unnecessary for him to do something unfavorable to himself.
3. If the exchange password is lost, you can get it back through the system mobile phone or binding email. However, the wallet can't do this. Some newcomers can't stand loneliness and will trade a few at the beginning. I think we have to control their own hands first and then their bitcoin wallet, This will be a more reasonable order.
For newcomers, I suggest putting it directly into the exchange. The handling fee of bitcoin withdrawal is actually very expensive. As a novice with small capital, it is a little overloaded. For old leeks with small capital, it is also recommended to put it in the exchange for the same reason. The withdrawal procedure is too high. For novices with large capital, My suggestion is to find out the concept of wallet at the first time, what is cold wallet and hot wallet, and then put about 50% of the assets in the wallet to avoid the occurrence of the black swan incident. For the old leek with a large amount of capital, I don't need to say more. They have rich capital experience. However, here's a little suggestion. For such people, it depends on their own trading needs to determine the proportion of your trading needs, so how much proportion of funds you can put in the exchange, not only because of the handling fee, but also because of the timeliness. We all know that bitcoin transfer is actually very slow, Generally, it takes about half an hour to start trading. Maybe you find an opportunity in the market. When you transfer money from your wallet to the exchange, the gap opportunity of this operation may have disappeared.
Both the wallet and the exchange have their own advantages and disadvantages. The exchange is easy to manage and trade. However, there is the possibility of the black swan incident. It is relatively safe to keep it in your wallet, but you are also easy to lose it if you are unable to keep the private key, In addition, there is no bitcoin at the transaction demand level. Is it better to put it in the security of the exchange or the wallet? Safe at the exchange.
Of course, some people put their assets in several wallets to spread the risk. Even if they pour one, there are other assets
Custody of assets and investment is actually a truth. There is no absolutely good way of asset allocation and no absolutely safe way of custody.

Eth is a popular currency on the market. Many players have bought this currency. At present, this currency can be traded on the currency security exchange. So how can yuan an eth withdraw cash and convert it into RMB? Let's have a look!

How can I change money into RMB
1. Log in to the account of currency security exchange
2. Click buy coin to display the following interface
3. Choose to sell, choose eth on the list I want to sell, and then fill in the quantity to sell. In the dialog box I will receive, it will automatically calculate how much money investors can receive.
4. Click 0 commission to sell.
How much is the handling charge for cash withdrawal of money security eth
1. Handling charge of currency transaction
The handling charge of currency transaction is the main handling charge in the process of currency security transaction. The rate is 0.1, which is charged for both trading and buying.
2. Handling charges for leveraged loans
The handling charges of different virtual goods transactions are different.
3. Contract
The contract service charge for taking orders is greater than that for hanging orders. The fee for taking orders is about 0.01, the fee for hanging orders is about 0.05, the contract due delivery rate BTC is 0.015%, and the other is about 0.05%. The contract transaction is very complex, so it is not recommended to operate at will.
4. Handling charge for currency withdrawal
The handling fee for money withdrawal belongs to the miner's fee, which is fixed and has nothing to do with a large number of small quantities. The withdrawal fees of different currencies are different. The withdrawal fees of bitcoin are the most expensive and the lowest is 0.0005btc, and the others range from 0.1 yuan to more than ten yuan.
How does money safety eth trade quickly
Open the currency security trading platform and log in to your currency security account.
On the platform page, click all, and then open the wallet page.
On the wallet page, find and open the C2C transaction.
On the C2C transaction page, select eth transaction.
On the C2C page, select the merchant that supports your collection method. After the car order is completed, you can trade the currency.

Metamask wallet is a pure encrypted wallet. At present, it does not support changing legal currency. You can refer eth to mainstream exchanges from metamask, such as coin security, okex and Huobi exchanges for selling. As for what you said, edge can't see the balance. You can reinstall the plug-in. In addition, you can also verify your balance through tokenview and Ethereum Etherscan. If eth withdraws cash, you need to transfer the token to the wallet of the exchange, and then change it back to usdt, and then withdraw cash.

Edge, it should be a compatibility problem. It is recommended to use Google or Firefox browser.

Imtoken wallet EOS mapping tutorial

preface
Many coin circle friends have used imtoken wallets. This article tells you how to complete EOS one click mapping through imtoken. The current EOS is a token based on Ethereum erc-20. After the EOS master network is started, it needs to be converted into a real token on the EOS master network. Therefore, this conversion operation needs to be completed through mapping. As long as there are more EOS after mapping, it will be a valid EOS token after 6.2 is on the master network.
Not much to say, let's take you to complete the one click mapping of EOS. (some screenshots are from imtoken tutorial)
Step 1: open imtoken wallet and click Find - > candy bar
Step 2: click EOS mapping
Here you will check whether your wallet has EOS and whether it has been mapped. If you have EOS in your wallet and have not been mapped, you will be prompted to map immediately. When you click map now, the public key and private key of EOS wallet will be generated for you. Note that the private key must be backed up safely. It is best to copy it on paper (note that it is case sensitive in English). Do not take screenshots or transmit and store it through the network. Keep the private key confidential and don't let it out.
After backing up the private key, click "I have confirmed and keep it properly"
Step 3: enter the private key just backed up in the input box for secondary verification
After the input is correct, click the read precautions &amp; mapping, and then a pop-up window will appear. You need to pay a small amount of eth as the miner's fee. Click OK to complete the mapping. After confirmation and waiting for the miner to confirm the transaction (this process takes about 10 minutes), the EOS mapping is completed.
Pending confirmation of transaction
Mapping succeeded
summary
Although most exchanges will help you do EOS mapping, it is recommended to do it yourself. The reasons are as follows: first, there are some candies dropped by air. The exchange will not give them to you. You can get them in your wallet; Second, you can exercise your voting rights (if you want EOS to develop better, you'd better use this right reasonably).

According to the latest news, BitTorrent under wave farm Tron has become a partner with Huawei. More than 3 billion Huawei users in 170 countries around the world can now use wave farm's BitTorrent product - the world's largest distributed network service. Huawei, the world's largest manufacturer of communication equipment, has put BitTorrent (BTT), an investment project of wavefield Tron, on the app Gallery app store of its latest equipment. Sun Yuchen, founder of wavefield Tron and CEO of BitTorrent, said: "for wavefield and BitTorrent, cooperating with one of the world's largest Android equipment manufacturers is another huge milestone. We very much look forward to the prosperity and development of distributed networks through Huawei's equipment and technology."

Im wallet supports bitcoin BTC operation tutorial

1、 Mnemonic backup
Imtoken's BTC wallet supports mnemonic word backup and private key backup of a single address.
Backup mnemonics for BTC Wallet
1. Open imtoken software to enter the asset page and click "..." at the top right of the page Button to enter the wallet management interface
2. Select export mnemonics“
Back up the private key of a single address
1. Enter BTC wallet management interface and click "wallet address"“
2. Select the address where you want to export the private key and slide the screen from right to left
3. Select export private key“
be careful:
1. It is recommended to back up the mnemonic words of BTC wallet, because backing up the mnemonic words is equivalent to backing up the private keys of all sub addresses and change addresses under the main address (click here to see how to safely back up the mnemonic words)
2. If the BTC wallet is imported using the private key, you can only export the private key, not mnemonics
How does imtoken modify the import path of BTC wallet?
Open imtoken, click the menu bar in the upper left corner of the wallet home page to enter the wallet selection page, and then click the upper right corner ⚙  Button to enter the wallet management page, click + in the upper right corner to enter the add wallet function, and select import bitcoin wallet.
Enter the wallet mnemonic in the text box, select the path, enter the correct wallet path, and set the transaction password of the wallet. Click "start import" to complete the wallet import
2、 How does imtoken switch between the normal address and isolation witness address of BTC wallet
Imtoken's BTC wallet supports two forms of addresses: normal address and segwit.
When importing BTC wallets, you can select the imported address form. After importing wallets, you can also switch the wallet address according to the actual use needs.
Operation steps:
1. Open imtoken software to enter the asset page and click "..." at the top right of the page Button to enter the wallet management interface
2. Click "switch address type"
3. Select "normal" and enter the wallet password
4. The wallet address is switched to the normal address starting with 1.
be careful:
1. The transfer fee of isolated witness address is less than that of ordinary address.
2. The assets of ordinary address and isolated witness address are not interconnected. If you want to transfer assets, you can send transfer.

Wave field tron| community ecology

Usdt based on trc20 is a stable currency for anchoring US dollars issued by tether Teda Company based on wave field network. So how to withdraw trc20-usdt in kucoin?
▼
What is trc20-usdt?
Usdt based on trc20 is a stable currency for anchoring US dollars issued by tether Teda Company based on wave field network. The smart contract will be used to complete the issuance, holding and transfer on the wave field chain. It is completely open and transparent, with zero transfer fee and second arrival. It can arbitrarily write scalable programs according to the smart contract. It realizes the interoperability with the distributed application (DAPP) based on Tron protocol, and allows users to trade and exchange legal currency on the Tron network. Advantages of trc20-usdt? The usdt based on trc20 meets the dollar concept in users' daily life, and users can more easily enter the DAPP ecology. Secondly, the usdt based on trc20 can well ensure the value locking of deposit and withdrawal. With the support of many mainstream exchanges and trading at any time, users can trade more confidently. At present, the stable currency in the market is mainly the stable currency designed by the exchange to increase liquidity. It has a single purpose. There are also problems such as slow transfer speed and high transfer rate. After the release of usdt-tron, users will experience a stable currency with fast transfer speed and zero handling fee. Meanwhile, the release of usdt-tron will further promote the development of Tron DAPP ecology. The stable currency will enable more users to enter the DAPP ecological field with the familiar concept of US dollar, reduce the impact of cryptocurrency fluctuations, provide better access and hedging methods for DAPP, and then usher in the large-scale application of DAPP. Usdt stable currency based on trc20 has greatly improved the existing decentralized application ecosystem of wave field, brought higher overall value storage and stronger liquidity of decentralized exchange, and provided more convenient blockchain entrance for enterprise partners and institutional investors. Transactions supporting trc20-usdt: coin security, kucoin, bitfinex, poloniex, bithumb, okex, dragonex, gate, BIGone, trxmarket... How to withdraw trc20-usdt in kucoin: I. how to withdraw money and log in to kucoin（ https://www.kcs.top/ ）- "asset center" - "withdrawal" - select usdt. After selecting the usdt currency, enter your trc20-usdt receiving address, and you will be prompted that the address is "public chain trc20". Kucoin provides users with the function of adding common addresses. Common addresses only need to be added once. You can pass the three steps of "transaction password" - "email verification" - "Google two-step verification or SMS verification", and then there is no need for cumbersome steps when withdrawing money to the common trc20-usdt address. 2、 Check the currency withdrawal record, log in to "asset center" - "currency charging and withdrawal record" - select the time or usdt: III. notes for currency withdrawal: the time for currency withdrawal and remittance is 30 minutes. If the amount exceeds 100000 times of the handling fee, it will be reviewed manually. The manual review time is within 2 hours of the working time, and the final arrival time is determined by the speed of the blockchain network; For transfer out, you need to carefully confirm whether the transfer out address is correct and trc20-usdt. If it is wrong or not, it cannot be rolled back;
About tronlinktronlink Bo Bao wallet is a safe, comprehensive and professional wave field wallet, which is committed to providing users with the safest choice of funds, the most comprehensive wave field functions, the most convenient use experience and the most abundant application choices. Bobao wallet is the largest decentralized wallet with the largest number of users in the wave field Tron ecosystem. At the same time, it is also the only wallet supported by both PC and mobile terminals. Its products have provided services to more than 300000 wave field users.
- END-
Wave field Tron takes promoting the decentralization of the Internet as its own responsibility and is committed to building infrastructure for the decentralized Internet. Its Tron protocol is one of the largest blockchain based decentralized application operating system protocols in the world. It provides high throughput, high expansion and high reliability underlying public chain support for decentralized application operation on the protocol. Wavefield Tron also provides better compatibility for Ethereum smart contracts through an innovative pluggable smart contract platform.

Before withdrawing assets, you need to confirm that your wallet has been set correctly. The tutorial of setting your wallet can be obtained by clicking the link below.

How to set up heco wallet before participating in mining
1. How to get the wallet address
How to get heco wallet address in metamask
You can automatically copy the wallet address by clicking the address under the name of metamask and account
How to get your heco wallet address in TP wallet app
Click the details in the upper right corner, click the wallet address under the account name, and then the wallet address will be copied to your clipboard
2. Acquire heco (hrc20) assets
At present, extracting heco (hrc20) token of heco fire coin ecological chain from fire coin global is the most mainstream method to obtain hrc20 token.
You need to register and log in to the Huo coin account to withdraw assets.
1）. Login fire currency
Log in to the official website of huocoin and click balances in the upper right corner
Or directly click the link below:
https://www.huobi.com/
https://www.huobi.be/
2）. Asset selection
3）. Withdrawal process
Select the asset you want to withdraw and withdraw money. When withdrawing money, select heco as the chain name, which is the token standard of Huo coin ecological chain.
Select the withdrawal quantity and confirm the handling fee. (the handling fee will be much lower than Ethereum's withdrawal fee)
1. PC terminal currency withdrawal tutorial
Select hrc20 for the chain name, otherwise your assets cannot be received correctly
II. Mobile terminal currency withdrawal tutorial:
1. Log in to Huo coin global app
2. Click asset in the lower right corner
3. Select husd, HT and other assets
4. Select withdrawal
5. Select heco chain in the currency withdrawal interface (Note: do not select the wrong chain and fill in the wrong currency withdrawal address, otherwise permanent loss of assets may be caused)
4）. Confirm withdrawal
After entering various verification codes, the currency withdrawal is successful.
5）. Query receipt
After Huo coin global confirms the withdrawal, you can query the receipt in the wallet.
For coins other than HT, such as extracting husd, HBTC and other tokens, generally the wallet on the PC side will not be displayed by default, and tokens need to be added
Metamask add asset method:
Do not add the name of the token by searching. You must add a contract to display it normally
The token searched is not hrc20 standard, but Ethereum version token
Add the wrong token. The correct amount cannot be displayed in your wallet. Don't panic. Your token won't disappear. You can see it by adding it correctly below
1. Click Add token
2. Click Custom token
3. Add contract address: take husd as an example: 0x0298c2b32eae4da002a15f36fdf7615bea3da047
4. Finish adding tokens

Defi is the abbreviation of decentralized financial, which refers to digital assets, financial smart contracts, protocols and decentralized applications (dapps) based on blockchain (mainly Ethereum).

In short, financial software built on the blockchain can be pieced together like Lego to form an overall utility, which is similar to the overall ability formed by API integration in the software field.
The essential difference between defi and cefi (represented by centralized exchange) is that everything you participate in is real. Every transaction, every loan, money deposited in the flow pool and assets in the wallet are real on the chain, not a database record of the exchange.
The main applications of defi include exchange, stable currency, deposit and lending, financial management, financial derivatives, payment, futures contract, cross chain payment, Oracle and other businesses, as well as lottery, auction, prediction and so on.
Defi has huge product and service content, but you may also find that they are too decentralized, so it has also spawned some aggregation applications, such as transaction aggregation, financial strategy agent, asset list and so on.
The revenue sources of defi mainly include the following directions:
1. Gain gains from currency price fluctuations from transactions
2. Interest income from deposit and loan of mortgaged assets
3. Provide liquidity mining for DEX to obtain income
4. Financial strategy (yield 2arming)
5. Other unexpected wealth (lottery, auction, Ido, etc.)
These benefits do not occur alone. You can use a base currency to obtain all the above benefits, that is, the benefits can be superimposed and amplified, but the risks will also be superimposed!
If you have the belief of long BTC, long Eth and long def, you can adopt this operation mode of revenue superposition:
1. Mortgage wbtc or eth in Oasis and lend Dai (0 interest rate)
2. At zapper Fi's investment observation liquidity mining income ranking
3. Choose a financial strategy and exchange Dai for corresponding tokens for betting
The above operations can enable you to enjoy financial benefits when your local currency (BTC, ETH) is fixed. When it comes to the application types of defi, such as stable currency, deposit and loan, liquidity mining, aggregation tools, you can basically understand how to play defi after one operation.
Participating in defi is to use various ecological applications. The following describes in detail the ways of wallet, exchange, deposit and loan, mining and data viewing.
First of all, we need to understand the stable currency when participating in defi. The first well-known stable currency is usdt. In the field of defi, the stable currency is divided into three categories:
1. Stable currency against "equivalent" US dollar reserves:
Usdt, usdc, tusd, etc
2. Stable currency forged by digital currency asset mortgage:
Dai, SUSD, etc
The credit assets behind these stable currencies are different. Usdt and other institutions rely on teher's credit and have audit risks. Dai and SUSD are issued by users themselves by pledging digital assets. The risk is mainly the change of collateral price. Therefore, the mortgage rate should not be too close to the clearing line.
Usdt and other stable currencies are mainly exchanged through OTC channels, and Dai and other stable currencies are mainly forged through users' personal mortgage digital assets (at present, many 0 interest rate mortgages).
We used to participate in some stable currency financial management. At present, there are many financial products of defi, and the annualized income is more than 15%. Therefore, casting Dai by mortgage is a stable arbitrage mode, which can make the cash holding profit superimposed.
If you feel that the application of defi is troublesome, you can directly mortgage eth into Dai, and then transfer the Dai to the exchange to participate in 16% annual financial management. It is the most stupid and easy way to get started.
All applications participating in defi need to use digital wallet, which is the most basic blockchain application. You must master the use before you can carry out other businesses.
Using digital wallet is to be responsible for your own assets, and all assets are under your own control. There are also risks, mainly the loss of personal property caused by the loss of private key. Therefore, be sure to keep the private key. This is the only proof of possession of private property.
Actually, using digital wallet is not difficult at all. What's more, it doesn't make much difference from using Alipay and WeChat. Hundreds of thousands of digital wallets are as secure and even safer as Alipay packs.
Mobile end users can install imtoken wallet, and users transferred from EOS can use meet One or MyKey, PC users use the Chrome browser to install the metamask plug-in wallet.

It can be said that the hot search of the okex exchange recently has also affected the hearts of currency circle investors. Although the turnover and assets of the okex exchange have not been affected at present, some investors are very worried about the running away or bankruptcy of the okex exchange, which also makes these investors very concerned about the operation of currency withdrawal of the okex exchange, It can be said that they maintain their trust in the okex exchange, because they will continue to trade in the okex exchange, but they will also leave themselves a way back, that is, after the transaction, put forward the digital currency. Then, how can okex withdraw the currency? How is the handling charge of okex coin withdrawal calculated? In view of these two problems, the currency circle editor will give you an in-depth analysis of the currency withdrawal steps of okex exchange and the collection method of handling charges.

How does okex withdraw money?
1、 Currency withdrawal tutorial:
1. Click asset management at the top right of the page, select currency withdrawal, you can select ordinary currency withdrawal or internal transfer, select the currency you want to withdraw, enter the currency withdrawal interface, enter the currency withdrawal address and currency withdrawal quantity, and click Submit.
2. If the opposite account is a registered account of okex or a cooperative exchange account, you can choose the method of internal transfer to withdraw money, click the drop-down menu next to the account type, select okex or other cooperative trading platform, enter the account name and transfer quantity, and click Submit.
Note: there is no service charge for internal transfer, and it will arrive quickly.
3. If you want to query the information related to currency withdrawal after currency withdrawal, you can query all your currency withdrawal records at the bottom of the currency withdrawal page. (the web version can query the withdrawal records in recent 3 months)
2、 Notes for currency withdrawal:
1. Before withdrawing money, you need to verify whether it is the same currency, such as AAC. The platform AAC is the main network currency. If the collection platform is erc20 token, the withdrawal address is erc20 token address. If it is not the same currency, you cannot withdraw money to the account.
2. The handling fee of online miners is required for ordinary cash withdrawal: it is charged by the online miners in the block, and the platform does not charge the handling fee of cash withdrawal. Taking BTC as an example, the handling fee of single cash withdrawal is 0004-0.01btc. The higher the handling fee, the faster the arrival speed.
3. Chain name: at present, only usdt for currency withdrawal needs to select the chain name, and other currencies do not need to be selected. Usdt is divided into three chains: Omni, erc20 and trc20. Select the chain with the same address as the remitting party.
4. In the process of currency withdrawal, there are some special currencies. In addition to filling in the recharge address, these currencies also need to fill in labels, memo and tag. If you don't fill in such labels, your currency will be lost.
3、 Withdrawal status:
1. Waiting for withdrawal: the withdrawal application has been submitted and waiting for withdrawal. (queue up in case of cash withdrawal demand congestion)
2. Manual audit: according to the judgment of okex system, some withdrawal requirements require manual audit, which will be confirmed by customer service personnel by telephone.
3. Withdrawal: the system is processing the export for you. At this time, the manual cannot participate in the operation. Please wait patiently.
4. Withdrawal succeeded: the assets have been withdrawn from the platform. You can query in the corresponding block. (log in to the PC side: withdrawal - all withdrawal records - click "view" behind the corresponding record)
How is the handling charge for okex currency withdrawal calculated?
Spot transaction rate is 0.15% - 0.1%; Leverage lending rate is 0.01% - 0.098%; Legal currency transaction is free of handling fee; The futures trading rate is 0.02% - 0.05%.
How does okex withdraw money? How is the handling charge for okex currency withdrawal calculated
Through the above introduction, I believe you already know something about how to withdraw money from okex

1. There are only Eth and erc20 chains on the ETH chain, but only those on the BSC chain can be received on the BSC chain. It cannot be directly transferred to how to operate. It can be cashed directly in the wallet, and the handling fee is relatively high; You can also switch from the wallet to the platform and then to the wallet to toss it again. TP wallet to eth is transferred to the exchange through erc20 channel, and then transferred from the BSC chain of the exchange to eth to the BSC chain of TP wallet. Although the steps and handling charges are increased, it is cheaper than flash cash.

2. The first time the newcomers operate, they really can't figure out why different chains and chains of different platforms in the wallet can't be transferred directly. It's because the blockchain is decentralized. There is no manual audit before each transaction, and the program only takes relevant steps according to the transaction initiation. Therefore, even if the address is wrong and the coin is lost, the miner's fee should also be paid. Any activity on the chain requires miner's fee.
3. Although there are many channels for digital wallet, there is basically no problem as long as we understand the corresponding chain between transfers. If there is no same chain between different chains, we need to find a third-party springboard to ensure that the link is clear.
1. Blockchain and blockchain wallet have developed for more than 10 years, which has roughly experienced three periods. During blockchain 1.0, people's demand for wallet is more about all node wallet mining and BTC and other assets management. In the ETH blockchain 2.0 era, blockchain wallets need to manage various types of tokens and interact with smart contracts. At this time, light wallets that do not need to synchronize all nodes have become our first choice, such as metamask. In blockchain 3.0, with the development of the public chain, the function and complexity of the wallet are gradually increasing. It is not limited to the storage and management of assets, but also serves as the most important ecological service platform of the whole public chain. At the same time, there are more and more scenes for people to interact with the blockchain anytime and anywhere, and mobile wallet has become your first choice. So far, more and more public chain wallets were born, including wave field wallets.
2. Wave field (Tron) has always been a hot project of domestic public chain. With the continuous optimization and improvement of the main network of wave field, the transaction speed per second (TPS) of wave field public chain has been increased to 10000, and the performance of public chain has been continuously improved, which has mobilized the enthusiasm of ecological participants to a greater extent. Wave field (Tron) has developed very rapidly in the past two years. With its advantages of low development and use cost and superior transaction performance, wave field has attracted many users and developers. The number of users and transactions of wave field DAPP has always ranked among the top three in the public chain.

Step 1: copy the ETH wallet collection address from imtoken

1.1 open the imtoken app on the mobile phone and click eth in the currency list
1.2 then click [collect]
1.3 click "Copy Collection address", copy your imtoken eth wallet address, and then send it to your computer
Step 2: add the collection address of imtoken in otcbtc account as the withdrawal address
2.1 log in to otcbtc "my account" with your personal account and password https://otcbtc.com/account , click the "cash withdrawal" button corresponding to eth wallet in the wallet list
2.2 click "new address" on the withdrawal page
2.3 enter the address label on the new withdrawal page
(please fill in your remarks on the address label to facilitate you to distinguish which exchange or wallet this withdrawal address is transferred to. In this example, the withdrawal is to imtoken, so you can fill in imtoken directly.)
Then paste the ETH wallet collection address you copied from imtoken, check the small box and click the "create" button
2.4 after the creation is successful, please confirm whether the address type you want to create is correct (for example, if eth is taken as an example in this paper, the ETH withdrawal address will be established)
Step 3: initiate the currency withdrawal application in otcbtc
3.1 click the "withdrawal" button on the withdrawal page
3.2 fill in the withdrawal quantity and withdrawal remarks (optional), enter Google two-step verification or SMS verification (one of two options), and then click the "submit" button
3.3 after submitting, the "withdrawal request is submitted successfully, please check the withdrawal confirmation email at the registered mailbox"
3.4 log in the email and click the link after confirming that the information is correct, that is, apply for currency withdrawal
3.5 "you have successfully confirmed the withdrawal request, please wait for this withdrawal request to enter the system queue for processing." Prompt information
3.6 you can see the relevant details in the "withdrawal history"
3.7 you will receive email and SMS notification after cash withdrawal
Congratulations on completing the withdrawal.

Kirobo, an Israeli startup, announced the launch of the "cancel transaction" button for Ethereum (ETH) blockchain transactions.

This function was previously only applicable to bitcoin, and is now open to eth transactions from November 12, followed by erc-20 token transfer.
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According to companies backed by the Israeli government, this feature will eventually include the ability to prevent remittances to smart contracts that do not accept deposits. Such transactions have previously resulted in irreparable token losses.
Destroy unexpected token burning
According to kirobo, the function is now available to eth holders through metamask and walletconnect, and its use process is very similar to its popular bitcoin trading solution.
When sending eth to the address, the user must enter a unique cryptocurrency. Funds will not be released from the sender's wallet unless the recipient's address is entered in the same cryptocurrency.
If the wrong cryptocurrency is entered or no cryptocurrency is entered, the sender can retrieve their funds at the touch of a button. In this way, the solution eliminates the common problem of permanently locking funds in the wrong smart contract.
It also prevents users from inadvertently destroying their eth tokens by accidentally sending them to the notorious 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.
Kirobo claims that the solution can resist man in the middle attacks because hackers will not be able to access eth funds without the corresponding cryptocurrency. It also said that it would not retain user tokens at any time to increase trust.
Ethereum (ETH) expands to benefit
Referring to the potential of the solution to help Ethereum expand when it becomes the de fi center of cryptocurrency, ASAF Naim, chief executive of kirobo, said:
"Using our logic layer ultimately eliminates the need to send test transactions, which greatly reduces the anxiety of users when transferring funds to third parties. Kirobo supports the principle of decentralization and gives users the same peace of mind when transferring funds between banks. In fact, it is superior because we know that funds in digital currency packages cannot be frozen."
The explosive growth of de fi protocol has led to more than 1 million daily transactions of Ethereum, more than three times that of bitcoin.
Bitcoin trading volume: ycharts eth trading volume: ycharts
According to kirobo, as the company seeks to create layers on the popular blockchain to protect transactions from human error and make them as secure as traditional finance can provide, the solution will greatly help expand to

Imtoken's Ethereum light wallet provides safe and convenient digital asset services for millions of users in the blockchain field. Multi Chain Wallet supports bitcoin and Ethereum; Tokenlon, a decentralized exchange, realizes rapid currency exchange.

How to export Wallet
Why export wallets
If you need to back up your wallet, we suggest you back up mnemonics. However, due to different usage scenarios, we may need to export private keys in different formats, such as keystore or plaintext private keys.
Export Ethereum Wallet
Export Ethereum wallet mnemonics
1. After opening imtoken software and entering the home page, click the "eth" button at the top of the page to enter the wallet management interface, and click "..." behind eth wallet Button
2. Enter the wallet management interface of eth wallet, click "export mnemonics" and enter the wallet password
3. Enter the export interface, please copy the 12 mnemonic words on paper and save them in a safe place at home!!! Don't reveal your mnemonics to anyone
4. After the export is completed, conduct secondary verification to ensure that the mnemonic words backed up are accurate, and click finish after verification; Please keep it properly and ensure to use offline storage instead of network transmission, otherwise your wallet will face the risk of theft.
PS: if your wallet doesn't have the option to export mnemonics, there are two possibilities:
1. Your wallet is imported using keystore or plaintext private key
2. After backing up mnemonics, you have selected the button to remove mnemonics
Export Ethereum wallet keystore
1. After opening imtoken software and entering the home page, click the "eth" button at the top of the page to enter the wallet management interface, and click "..." behind eth wallet Button
2. Enter the wallet management interface of eth wallet, click "export keystore" and enter the wallet password; Enter the export interface and operate according to the prompts.
3. Enter the wallet management interface of eth wallet, click "export keystore" and enter the wallet password; Enter the export interface and operate according to the prompts.
Export Ethereum wallet plaintext private key
1. After opening imtoken software and entering the home page, click "eth V" as shown in the figure to enter the wallet management interface, and click "..." behind eth wallet Button
2. Enter the wallet management interface of eth wallet, click "export private key" and enter the wallet password
3. Enter the export private key interface and operate according to the prompts. Please keep it properly and ensure to use offline storage instead of network transmission, otherwise your wallet will face the risk of theft.
Export bitcoin Wallet
Because there is no clear standard on keystore in bitcoin community, when exporting bitcoin wallet, you can only export keystore or mnemonic words.
Export bitcoin wallet mnemonics
1. After opening imtoken software and entering the home page, click the "BTC" button at the top of the page to enter the wallet management interface, and click "..." behind BTC wallet Button
2. Enter the wallet management interface of BTC wallet, click "export mnemonics" and enter the wallet password
3. Enter the export interface, please copy the 12 mnemonic words on paper and save them in a safe place at home!!! Don't reveal your mnemonics to anyone
4. After the export is completed, conduct secondary verification to ensure that the mnemonic words backed up are accurate, and click finish after verification; Please keep it properly and ensure to use offline storage instead of network transmission, otherwise your wallet will face the risk of theft.
PS: if your wallet doesn't have the option to export mnemonics, there are two possibilities:
1. Your wallet is imported using keystore or plaintext private key;
2. After backing up mnemonics, you have selected the button to remove mnemonics
Export plaintext private key of bitcoin Wallet
1. After opening imtoken software and entering the home page, click the "BTC" button as shown in the figure to enter the wallet management interface, and click "..." behind BTC wallet Button
2. Enter the wallet management interface of BTC wallet, click "export private key" and enter the wallet password
3. Enter the export interface and operate according to the prompts. Please keep it properly and ensure to use offline storage instead of network transmission, otherwise your wallet will face the risk of theft.
PS: if your bitcoin wallet is imported using the plaintext private key, then you can export the bitcoin private key. If you import using mnemonics or BTC wallet generated from imtoken, then you can only export mnemonics.
How to import wallet?
Imtoken 2.0 introduces the concept of digital identity. Digital identity is not the identity of real name authentication, but your digital identity in the blockchain world.
When using imtoken 2.0, users must use mnemonics to generate a digital identity. If you have not backed up mnemonics before, or if you are using a decentralized wallet for the first time, you can click create identity.
If you have backed up mnemonics before, you can use the identity recovery function to import mnemonics to generate digital identity.
So how to import the wallet under the current digital identity?
Here, take importing bitcoin mnemonics as an example:
1. Click the pull-down switch wallet button at the top of the 'wallet' home page, and click the '+' button on the right side of the 'imported wallet'
2. Enter the 'select wallet type' interface, click 'bitcoin wallet', and enter the 'import bitcoin wallet' interface
3. Select 'mnemonic words', enter mnemonic words in the input box (each mnemonic word is separated by a space), enter the wallet password, and select whether it is an isolated wallet address
Note: one thing to note here is that when selecting the address type, select 'isolation witness' or' ordinary wallet '. The isolation witness wallet is the BTC address starting with 3, while the ordinary wallet is the BTC address starting with 1.

Recently, sun Yuchen, the founder of cryptocurrency wave field, said on his microblog that "due to the sudden kidney stone being treated in the hospital, the lunch meeting with Mr. Buffett was cancelled for some reason. At present, his physical condition is stable and in the recovery period, so he can't accept the interview. Please forgive me".

The sudden appearance of such a situation at the meeting, which had attracted much attention, was really surprising.
The reporter of "daily economic news" noted that affected by the news, as of 23:26 yesterday, the quotation of wave field / Tron fell by 24.76%, and the market value also fell out of the top 10 cryptocurrencies.
Not long ago, the digital currency scheme Libra promoted by Facebook attracted great attention from the market. Since then, G7 finance ministers and central bank governors reached a consensus to strictly supervise Libra. This move is to push the attention of digital currency to a climax.
About this series of events, where is the investment value of virtual currency? What is the difference between bitcoin and other virtual currencies? The reporter of the daily economic news (hereinafter referred to as NBD) interviewed Xiao Lei, a digital currency analyst.
Sun Yuchen's hype
NBD: what do you think of sun Yuchen's sky high price of Buffett's lunch?
Xiao Lei: if we look at the development history of blockchain or the development history of digital currency, this is indeed a turning event.
As we all know, in the traditional market, Buffett is known as the God of stocks and has become the richest man in the world. He has too many followers around the world, including China. In another new investment market, sun Yuchen was able to take this lunch for more than 30 million yuan and sit down to have dinner with Buffett, which is of historic significance in itself.
The collision of these two forces involves too many things. Because the currency issued by sun Yuchen himself has been traded in the secondary market. If you look at the standards of a listed company, it is already a public event. We must pay attention.
But this matter will not bring much help to his own project. Wave field is a project starting from marketing. There are two kinds of projects in the digital money market. One is the start of technology, that is, CTO (Chief Technology Officer) finally becomes the leader of the project, uses his technical ideal, organization, algorithm and community to let more people participate in this matter, and then pushes up the price of money.
There is also a model, that is, complete marketing. If you participate, I can promise you many benefits and even invest in you.
Meeting people like Buffett, I think this is a peak of marketing. Next is the turning point. It's hard to create an event that is more sensational than eating with Buffett.
In addition, as the founder of a coin issuing company, you take so much money to have a meal, and you have no goal, just to instill an idea into Buffett and make him recognize the blockchain. Buffett is a person who is difficult to be convinced. Of course, sun Yuchen knows it, so this matter is a hype in sun Yuchen's logic.
His marketing approach is not a good start for the whole market. On the contrary, it makes the digital money market more controversial and has a greater gap with the traditional market.
Bitcoin is difficult to stably return investors
NBD: Facebook vigorously promoted Libra, and bitcoin also soared before. How do you view this phenomenon?
Xiao Lei: globally, the definition of virtual currency is very difficult.
Some countries define it as virtual goods, some as assets similar to cash, and some as illegal assets. But in the existing currency, no matter how you define it, bitcoin is already a real thing.
The United States is the benchmark of global finance. The United States defines what an asset is like, which is basically accepted by the whole world. The financial rules in today's world are dominated by the United States, and the dollar has a great influence. From the perspective of the United States, it has at least launched legal bitcoin futures, which shows that the United States has recognized its legitimacy.
So can bitcoin bring returns to investors? I have to say something else.
The market value of this wave of virtual currencies, at its peak, was close to $400 billion. What is this concept? Facebook's market value is $400 billion. In this case, it cannot be said that virtual currency has no value.
In economics, price is basically value. How can something without value have a price?
The question now is, is its value stable? Can its price fluctuation bring investors a stable return on investment? There's a question mark.
Of course, the security of bitcoin is slightly higher. In this way, its volatility is nearly 10 times that of gold. In other words, when gold fluctuates by 1%, it fluctuates by 10%. Although it has value, its value or its investment attributes and risks are not affordable to ordinary people.
In reality, few profitable (virtual currency) projects, including sun Yuchen's wave field currency, have a market value of $15 billion, but they still don't make money. It's always spending. You don't pay dividends when you hold coins, and it doesn't mean you have equity. This is a "Bo silly" game, or zero sum game. I hold it for the purpose of selling it to you at a higher price. If you don't answer, it'll fall into my hand.
Why is this kind of thing still pursued? Where does its value come from? That's blockchain. Bitcoin only uses blockchain technology, but blockchain technology is absolutely valuable.
It is a very low-level technology. It can reduce the transaction cost of the whole society and promote the development of society. In fact, when we pursue virtual currency, we expect that the blockchain will be recognized and erupt one day.
So investors will ask, can I catch this bus? But when he went to look for the car, he couldn't find the target. Now some people have made a coin and said that this is the blockchain. You can take my car and be fooled. It is not certain how much this currency has to do with the future blockchain revolution.
The value of virtual currency is based on blockchain, but these are some very marginal things that everyone can touch. How can we dig out the real value of blockchain? No one knows this. In this regard, China's central bank, bat and other Internet giants are also exploring.
Bitcoin is a star application of blockchain, which proves that the technology is secure and cannot be destroyed.
Bitcoin has high security
NBD: what are the characteristics of bitcoin compared with other virtual currencies?
Xiao Lei: in the history of monetary development, several metals have undertaken monetary functions, including iron, copper, silver and gold. Among them, what everyone wants to hold most is gold.
What are the value characteristics of bitcoin in virtual currency?
The first is the brand effect. Bitcoin is the first successful application of blockchain technology. It carries forward the blockchain technology to let everyone know. It is the earliest digital currency, opening the history of digital currency.
Its system is very safe and its anti-counterfeiting coefficient is very high. Now there are a large number of hackers in the world. They can only steal the bitcoin you hold, but the bitcoin network cannot be broken. Paper money, including US dollar and Japanese yen, may produce counterfeit money, but bitcoin cannot produce counterfeit money.
The third is its scarcity. Nowadays, many digital currencies are basically not scarce, such as the wave field currency issued by sun Yuchen.
Without brand barriers and accumulated exposure, it will have no scarcity and a very large circulation. It does not mean that the specific issue quantity of a certain coin is very large, but that the issue quantity of this kind of coin is very large. If you think this coin is valuable, I'll issue one. But bitcoin can't be imitated, because it can't be copied. Its release time and user base can't be imitated.
The fourth is its trading liquidity. The transaction value of bitcoin in a single day is more than $50 billion, and there are billions of dollars at ordinary times. Its market value is only more than $100 billion, but its daily turnover is more than $10 billion.
For Wall Street, because there is no practical use, they think more about liquidity. If there are only $100 million to $200 million a day, no one will participate. Many virtual currencies don't even have a daily trading volume of $10 million, which can't be compared with the trading value of bitcoin.

Why do I need a bitcoin wallet

Unlike most traditional currencies, bitcoin is a digital currency. Therefore, the method of this currency is completely different, especially when acquiring and storing it. Since bitcoin does not have any physical shape or form, it cannot be stored anywhere technically. Instead, it is the private key used to access your public bitcoin address and sign transactions that require secure storage. The combination of the recipient's public key and private key makes bitcoin transactions possible.
There are several different forms of bitcoin wallets, which can meet different needs, and are different in terms of security, convenience, accessibility and so on.
Paper wallet
A paper wallet is essentially a document that contains a public address and private key that can be used to receive bitcoin, allowing you to spend or transfer bitcoin stored at that address. These are usually printed in the form of QR codes so that you can quickly scan them and add keys to the software wallet for transactions.
You can use services such as bitaddress or bitcoin paperwallet to generate paper wallets, allowing users to create completely random bitcoin addresses and private keys. The generated documents can then be printed, and some of these services provide tamper proof design. You can even choose to order holographic labels and use them.
The main advantage of the paper money wallet is that the keys will not be stored anywhere in digital form, which makes it completely free from hacker attacks. It can record the malicious software of users' keystrokes and basically any form of digital theft. However, some precautions still need to be taken when creating wallets.
Obviously, before generating a paper wallet, you need to make sure that no one is watching you do so. To eliminate the risk of any spyware monitoring activity, it is recommended to use a clean operating system running from a USB flash drive or DVD, such as Ubuntu.
In addition, once the paper wallet is set up, the website code should be able to run offline, which allows you to disconnect from the Internet before actually generating the key. Finally, use a printer that is not connected to the network.
In addition, it's important to know that you print valuable personal information on a piece of paper. Therefore, you need to take some measures to protect the paper. For example, it is recommended to put it in a sealed plastic bag to prevent water stop, moisture and general wear. Some people like to laminate it and store it in a safe, storage box or entrust a lawyer to deal with it.
Physical bitcoin
Physical bitcoin usually preloads a fixed number of BTCs, and the intention is that its value cannot be spent as long as the private key remains hidden. This is usually achieved by implementing tamper proof sealing.
Bitbill's first product was like a credit card, but most of its subsequent substitutes were shaped into a round medal. Mike Cadwell, a cryptocurrency enthusiast nicknamed "casascius", created the first popular casascius entity bitcoin in 2011.
The private key is hidden under a strippable hologram, leaving a tamper proof mode when it is removed. In exchange, coins lose their numerical value. Since then, there have been several new coin manufacturers.
Physical bitcoin is a very convenient way to store your funds more securely, which is very useful in offline transactions. Most importantly, they have recently become a valuable collection. However, the main disadvantage is serious security problems.
In November 2013, Mike Cadwell was asked to stop the operation of the financial crime enforcement network because his work was considered to be a money sender. The rules of this activity were unbearable, so he had to stop selling items containing digital bitcoin. Since BTC is still a legal gray area in many countries, these items may even be regarded as counterfeit money by the authorities.
move
For those who actively use bitcoin every day to pay for goods or trade them face-to-face in stores, mobile wallet BTC is an essential tool. It runs as a smartphone application, stores your private key and allows you to pay directly from your phone.
In addition, some applications enable users to use their smartphone near-field communication function, which means that they can simply click on their phone to oppose readers without having to provide any information at all.
Any complete bitcoin client needs to access the entire blockchain ledger, which is growing and requires thousands of megabytes of storage space. Therefore, mobile wallet utilizes simplified payment verification (SPV) technology. They are only applicable to a very small subset of the blockchain and rely on trusted nodes in the bitcoin network to ensure that they have the correct information.
Although bitcoin storage is a convenient mobile solution, mobile wallets are vulnerable to hackers. In addition, if someone just accesses your mobile device, you may lose control of your wallet. Devices running on Android have a variety of bitcoin wallet applications. Apple banned bitcoin wallets from the app store in February 2014, but reversed its decision a few months later.
Web Wallet
Web wallet stores your private key on the server of the company that provides such services. The server is always online and controlled by others. Different services provide different functions, some of which link to mobile and desktop wallets and copy your address on your own devices.
Users can access their money anytime, anywhere through the Internet, which is very similar to any electronic wallet. However, unless properly implemented, the organization running the website may access your private key and take full control of your funds. In addition, some e-wallets operate on the basis of exchanges, and some exchanges close and escape users' funds.
Desktop Wallet
The desktop wallet has been downloaded and installed on your computer. Store your private key on your hard disk. By definition, they are safer than online and mobile wallets because they do not rely on third parties to obtain data and are more difficult to steal. They are still connected to the Internet, which makes them inherently insecure. However, for those who trade a small amount of bitcoin from their computers, desktop wallet is a good solution.
Desktop wallet has a variety of different options to meet different needs. Some focus on security, some focus on anonymity, etc.
Hardware
Hardware wallet is a quite unique bitcoin wallet, which can store the user's private key in a secure hardware device. This is the safest way to store any amount of bitcoin. There is no verifiable theft of money from the hardware wallet.
Unlike paper wallets, paper wallets must import software at some time, and hardware wallets can be used safely and interactively. In addition, they are not affected by computer viruses, and the stored funds cannot be transmitted to output devices in clear text. In most cases, their software is open source.
Some hardware wallets even have screens, which adds another layer of security because they can be used to verify and display important wallet details. For example, the screen can be used to generate a recovery phrase and confirm the amount and address of the payment you want to make. Therefore, as long as you invest in a real equipment with a good reputation manufactured by a trusted and competent manufacturer, your capital will be safe and reliable.
Bitcoin wallet and security
Possible problems:
Capture malware. Malware can scan your disk and find your private key. After a few seconds, all your bitcoins can disappear. The Trojan horse can encrypt all files on the hard disk. After that, it may find all the links to your wallet, realize how much money you have and ask for the exact amount of bitcoin to decrypt your hard disk.
Virtual exchange can escape with your money. You can lose a laptop or mobile phone with a wallet installed on it.

The usdt on huocoin online cannot be transferred to imtoken wallet. Because imtoken does not support usdt bitcoin wallet support.

Based on the BTC block network, usdt can operate and withdraw money normally, depending on whether the other platform supports receiving. Invalid because the imtoken wallet is not connected to the usdt.
Usdt can go to bitpie. However, it is generally not recommended to keep usdt for a long time.
Imtoken wallet is an exclusive Ethereum wallet, which can only be used as a token for storing Ethereum. Usdt TEDA coins are exchanged with us dollars, 1usdt = US $1.
Extended data:
The usdt TEDA coin purchased on Huo coin online needs to make a transfer action, transfer the currency of the legal currency account to the trading account, and then the channel button of withdrawal will appear below the usdt ratio. If there is no transfer, the button of withdrawal will not appear. Then you can see if the wallet platform imtoken can receive this coin. You can help find the answer inside.
Then, it is normal to transfer the usdt on Huo coin online into imtoken. If imtoken does not support it, just find another wallet that can support the deposit of usdt coins.
Advantages of huocoin network:
1. Safe and reliable, easy to use, and the product user experience is particularly friendly.
2, support OTC legal tender transactions, support WeChat, Alipay and bank card transfer.
3. The application for registration is simple, with more currencies and large trading volume, which is convenient for trading at any time.

Generally, the withdrawal time of huocoin.com is 10-60 minutes. The specific time of withdrawal depends on the confirmation speed of the network block. This confirmation is not completed by huocoin.com, but confirmed by the miners in the network block. Because when you withdraw money to other platforms, you need to contact other platforms to know the exact time

Expansion materials:
1. Bitcoin withdrawal means that users mention bitcoin in their wallet on the platform to ensure the security of bitcoin. Bitcoin is a virtual encrypted digital currency in the form of P2P, which is not issued by specific currency institutions. It is generated through a large number of calculations according to specific algorithms. Its total quantity is very limited and has strong scarcity.
2. Bitcoin does not have a centralized issuer. It can be bought and sold on any computer connected to the Internet. No matter where it is, anyone can dig, buy, sell or collect it. During the transaction, Chinese and foreign people cannot identify the user's identity information and support global 7 * 24-hour transactions. Bitcoin Trading is not allowed in China.
3. The process of bitcoin mining is called mining, which generally goes through these steps: preparation, finding the mine pool, registering the mine pool account, setting the mine pool account, downloading the bitcoin miner (software) and configuring the bitcoin miner; After the above steps, you can mine.
4. Digital currency, referred to as digiccy for short, is an unregulated and digital currency. It is neither issued by the central bank or authorities nor linked to legal currency. However, it can be used as a means of payment or transferred, stored or traded in electronic form because it is accepted by the public. It is worth mentioning that digital currency adopts blockchain technology.
5. Online banking, also known as online banking, online banking or e-banking, is a virtual counter set up by banks on the Internet. Banks use network technology to provide customers with traditional services such as opening, closing, inquiry, reconciliation, intra bank transfer, inter-bank transfer, credit, online securities, investment and wealth management through the Internet, so that customers can be safe and secure without leaving home Conveniently manage current and time deposits, checks, credit cards and personal investments.
6. E-wallet is a commonly used payment tool in e-commerce shopping (especially small amount shopping). E-wallet users usually have accounts in the bank. When using the E-wallet, first install the corresponding application software, and then use the E-wallet service system to input the e-money in your account. In case of receipt and payment, users only need to click the corresponding item on the computer. The system has the function management module of e-money and e-wallet, which is called e-money wallet manager. Users can use it to change passwords or confidentiality methods, and use it to view the accounts, lists and other data of electronic money receipt and payment transactions in their bank accounts. An electronic transaction recorder is also provided in the system. Customers can understand their shopping records by querying the recorder.

1 download fire Coin Wallet https://www.huobiwallet.com/ , download and install Android directly, and choose Pro version for IOS. Configure the wallet as heco Huo coin ecological chain. After creating an account, a small amount of HT (0.01 is enough) is required to pay the gas fee for subsequent operations. You can buy and withdraw the wallet from Huo coin exchange (if it is troublesome, you can buy it from the administrator).

2. The club uses the invitation system to mine. Those who do not bind the invitation cannot mine. Therefore, first find the invitation link in the group, copy the invitation link, open it in the address bar of the fire Coin Wallet, and select heco fire coin ecological chain wallet when opening it. After DAPP is opened, the binding window will pop up. Click Set payment to bind.
3 Mining: the club adopts liquidity mining, and the currency production mechanism is bound to the price. Only when the price reaches a new high can it produce currency. The parameter on the formal chain is that each cycle is 24 hours, and the price is checked every 24 hours. When the price reaches a new high, 1000 clubs will be produced to the mine pool and evenly released in 7 days. The output of each miner is calculated according to the proportion of the time of mortgage LP. In the test phase, in order to speed up the whole cycle of user experience, one cycle per hour is adopted, 100 coins are produced each time, which is excavated in 7 hours.
4. Invitation requires that the number of LP mortgaged by the miner is greater than 1 to have invitation permission. When the amount of LP mortgaged by the invitee is less than 1, the invitation link is invalid.
5 club is committed to building a community project. When it is officially launched, it will be zero pre dug, and the coins of Chuangshi yuan will be shared with the club
There are miners participating in the test mining. I hope you will actively participate and seize the opportunity to answer any questions in time.

Okex exchange is a blockchain asset trading platform well known to investors. It integrates OTC legal currency trading, currency currency trading, spot leverage trading and contract trading. It mainly provides the purchase and sale services of mainstream digital currencies such as bitcoin, Wright coin and Ethereum. It has the characteristics of low currency rate, many currencies and large trading volume, You can also query the latest digital currency market and price.

As the top exchange in the world, more and more investors choose Ouyi okex trading, but many novice investors have difficulties in the operation of withdrawing money from the okex exchange to the wallet. Here, Xiaobian focuses on introducing the process of withdrawing money to investors. Interested novices can collect and download
Ouyi okex is a service software that can help users obtain all-round transactions. The software is developed by the world's top security team. The global chain circle coin circle news and daily hot spots are pushed in real time, so that users can quickly understand the industry dynamics and easily know more about the coin circle.
How does Ouyi okex account mention Wallet:
1. Click the account in the upper right corner and click security settings to enter. In the personal information, check whether to bind the email and real identity authentication.
2. Click asset management to enter the asset management of the account, and you can see the assets of various accounts.
3. Here's an example: if I buy EOS in legal currency and point-to-point account, I need to transfer it to currency account (master account) first. After I find EOS, click transfer out to transfer out to other accounts.
4. After clicking transfer out, a fund transfer window will appear. The first option is to select the currency you want to transfer. For example, I transfer out EOS from point-to-point to currency account. Click OK. Our goal is currency account. Remember this.
5. Then we click the currency account interface to see if the EOS we crossed is here. There will be many currencies here. We will directly search EOS on the right. Here, it shows that there is one available EOS. It indicates that the transfer is successful.
6. After there is money in the currency account (master account), we click "withdrawal" on the left to enter the withdrawal interface. The first item is to select the currency of withdrawal. We select EOS and select the currency according to the currency we want to withdraw. The withdrawal address is our imtoken collection address. If there is no imtoken address, please register one. Please see this tutorial for details.
7. Click add address, select currency, and fill in the withdrawal address, i.e. the imtoken collection address, for example: 0xda4ae9e55a558e10b36de08578db021b796619cf remarks can be written here. There is an authentication address here. The authentication address means that there is no need to verify the capital password, secondary verification code and email password when withdrawing cash to this address. You can withdraw cash directly to this address, because it has been certified. In other words, if you withdraw cash for a long time, it is recommended to be certified.
8. Here we can enter the amount of money to be withdrawn. What we need to pay attention to here is that 0.5eos handling fee is required for each withdrawal. This is calculated according to each transaction, not according to the quantity. No matter how much cash you withdraw, it's the handling charge.
The above is an introduction to the withdrawal process of Ouyi okex transaction

The latest version of Maizi wallet has supported coin security smart chain. Users can directly create addresses, store assets, stacking and cross chain transfer operations in Maizi wallet to participate in coin security smart chain ecology more quickly and conveniently.

Mathwallet announced on twitter that it had been selected as one of the candidates for the coin security smart chain verifier. On December 17, 2020, coin labs announced the round B financing of mathwallet, with a total amount of US $12 million. Wheat wallet is a general-purpose encrypted asset wallet, which has been newly upgraded to math. Math relies on the wallet and is a blockchain asset hub with Multi Chain and cross chain as the core. Maizi wallet is one of the first encrypted asset wallets supporting coin security smart chain (BSC).
About coin security intelligent chain
Coin security intelligent chain is an innovative solution for coin security chain to support EVM programmability and cross chain interoperability. It will rely on 21 verifiers to output blocks, and the system follows POSA (proof of stacked authority) consensus algorithm. The processing time is very short and the handling fee is low. The verifier's choice is based on the number of tokens it binds. By preventing multiple signatures and other punishment mechanisms to restrict the verifier, the security and stability of transactions on the chain are also realized.

Ethereum is an intelligent platform created by blockchain 2.0. Do you know how long the transfer of Ethereum will arrive? People outside the currency circle do not care how long Ethereum transfers arrive, because they are not interested in the development of digital currency. However, with the rise of the value of Ethereum, the investment in Ethereum is also gradually increasing. Ethereum is the product of blockchain 2.0, and bitcoin is created by blockchain 1.0. Therefore, Ethereum is technically more stable and more scalable than bitcoin, which naturally attracts more people to pay attention to the development of Ethereum.

1、 How long will Ethereum transfer arrive
Novices will inevitably be nervous when they transfer to Ethereum for the first time, because they don't know how long the transfer will arrive, so they are anxious every second. The network speed of Ethereum transfer is relatively fast, because Ethereum network solves the problem of insufficient scalability in bitcoin network, and Ethereum network is also faster than bitcoin network. Usually, Ethereum transfer takes only a few minutes to arrive. If you have not received the receipt information for Ethereum transfer, you can consult the customer service or find out whether there is an error in one of the processes. Whether it is to transfer bitcoin or Ethereum, there is a handling charge. Because the handling fee is not only an encouragement to miners, but also a compensation for miners' electricity. It's not easy for miners to confirm every transaction, so they also need compensation.
2、 Ethereum transfer fee
In Ethereum transfer network, the handling fee is usually paid through eth, while eth is not consumed internally, and gas is consumed internally. The service charge is calculated by multiplying the unit price of eth by the service charge of eth. When a novice makes an Ethereum transfer, he should not only understand how long the Ethereum transfer arrives, but also know the handling fee of the Ethereum transfer. Because digital currency transfers need to be confirmed, it is natural to pay handling charges to miners in order to transfer successfully. However, Ethereum has a high transfer speed. If the latest account time is not successful, users can check the situation through oklink browser.
How long will Ethereum transfer arrive? Although the network speed of Ethereum is very fast, the arrival time of transfer is not uniformly determined. When the amount of etheric money transferred is different, the arrival time will also be different. In addition, the transfer will encounter different problems under different circumstances. Sometimes the transfer card will be in the transfer out review stage, and sometimes it will fail to pass the transfer in review. If the user's Ethereum transfer is delayed, the user can download oklink query by himself. After all, oklink is a professional browser that provides free help to users and can solve various problems of users.

Metamask, a browser plug-in wallet, does not need to download and install the client, but only needs to be added to the browser extension program. It is very convenient, and it can easily debug and test the smart contract of Ethereum.

Base environment: Chrome browser installed
Install metamask plug-in
1. Open the Chrome browser, enter in the address bar and press enter to enter the Chrome extension management page. chrome://extensions/
2. Pull to the bottom of the page, find "get more extensions", and click to enter the chrome online app store. 3. Search metamask. 4. Click Add to chrome to complete the installation.
Note: downloading Google store requires scientific Internet access. If not, open metamask IO installation.
Account creation and management
1. Click the fox head icon of metamask on the right side of the browser address bar. When you use it for the first time, a privacy prompt will appear, as shown in the following figure:
The user is prompted here that after logging in to metamask, your account is visible to all websites you visit. For your privacy, you'd better log out after using metamask.
2. Click the accept button to display the service terms of metamask
Note: the accept button is gray by default. Pull the scroll bar to the bottom and click the accept button.
3. Next, there are two options: you can import the previous account or create a new account.
Import previous account: click the import existing den link. Den means to encrypt the wallet stored in metamask with a password, enter 12 English auxiliary words of the previous account, and enter the password to complete the import, as shown in Figure 1-3:
As long as the English mnemonic words are correct, the password can be reset and the previous eth wallet address can still be retrieved. After the password is reset, you can use the new password next time you log in. Test mnemonic: Loan wasp endless touch melt develop cage sock deny tack fringe history to see if eth wallet address is 0xd134dd2a3c16fb1285cd6fdc8a03d4bbe5d7031
Create a new account: enter a string of 8-digit passwords, repeat them again, and click the Create button to complete. Take creating a new account as an example:
After clicking the Create button, metamask will create 12 English mnemonic words for users. Be sure to save these mnemonic words. Click Save seed words as file to save the auxiliary words locally in the form of files. It is recommended to record them manually with paper and pen and store them in a safe place.
At this point, you can see our account interface
Click the main network drop-down button at (1) to select the connection network, as shown in Figure 1-7:
Main Ethereum network: Ethereum main network
Ropsten test network: ropsten test network, which uses POW and is consistent with the current public chain environment, was released on November 2016.
Kovan test network: Kovan test network, only supported by parity wallet, using POA consensus
Rinkeby test network: rinkeby test network, only supported by parity wallet, using POA consensus
Localhost 8545: local test network
Custom RPC: custom network
Click the avatar icon in the upper right corner (2) to create an account or import an account
Click (3) in the upper right corner to set the pricing method of virtual currency in the wallet (as shown in Figure 1-8), or temporarily lock the account interface to facilitate leaving the computer.
As shown in Figure 1-6, place the cursor on the account name and click (4) to edit the account name (as shown in Figure 1-9)
As shown in Figure 1-10, click the three point buttons on the right of the account name to view the transaction record of eth wallet address in Ethereum browser, display the two-dimensional code of eth wallet address, copy eth wallet address and export the private key of eth wallet address
Practical tips: https://etherscan.io/address/0x706... Replace the end with any Ethereum wallet address (public key) to query all transaction records of this wallet.

How can imtoken users easily and quickly change their wallet password? Imtoken wallet (Ethereum wallet) is your necessary software in the coin circle. All tokens sent based on Ethereum (ETH) can be used to receive or transfer money. If you want to hold your currency for a long time without trading, or feel that the exchange is unsafe, you can mention it in your imtoken wallet.

In the decentralized wallet imtoken wallet, the authentication contents of all users, such as transaction password, private key and mnemonic words, are saved locally on the user's mobile phone and not in the centralized server. Therefore, the user forgets the password and cannot be reset through a third-party organization (such as imtoken team).
In imtoken 1.0, reset password tutorial: "I" - "manage wallet" - "select wallet to modify" - "modify password" - "import now" - "mnemonics / private key"
In imtoken 2.0, if "identity password is forgotten", you can only "reinstall app and import identity mnemonics" to reset the password. If "the imported wallet password is forgotten", reset the password tutorial: "click the drop-down button to open the wallet list" - "imported wallet" + "-" select the imported wallet type "-" enter the wallet mnemonic or private key and set a new password "-" prompt that the wallet already exists and click OK "
If you don't save the private key or mnemonic words, you can't reset the password. You can only try to find it through careful reflection.

Simplest description of TRX, Tron wave field 

ipulong
ipulong
Blockchain
Tron, the Chinese name of wave field and the token symbol TRX, was founded in 2017. On September 29, 2020, it ranked among the top 15 in the encryption market, with a market value of about US $1.8 billion.
Basic cognition:
Total number of passes issued: 100 billion. Current number of passes issued: about 71 billion.
At the initial issuance of the pass, 45% was allocated to the founding team. The remaining 55% is the token of the circulation market.
Consensus algorithm: entrust the right certificate dpos, and the holder can entrust the super representative to generate blocks by freezing the pass to maintain the network consensus. Using super representative method can improve the throughput of the network. The official website says it can reach 2000 TPS, compared with bitcoin, it is about 3-6 TPS.
Positioning: serve content creators, facilitate their direct transactions with content consumers, and skip intermediaries. For example, game distribution or personal content creation. Another example is the app store. If it can be freely distributed through Tron, it can avoid paying 30% Apple tax. Developers can increase revenue and consumers can reduce purchase costs.
In 2018, wave field project acquired BitTorrent, a well-known download service, and then launched BitTorrent token (BTT). At present, it is mainly used inside BitTorrent project, which is basically related to content distribution and sharing.
Operation network: the wave field has its own main network. It can also support smart contracts and decentralized DAPP development.
Future development goals defined on the official website:
Cross chain support based on wave field common chain
Fully support protected / anonymous transactions (ipulong: a transaction line supported in zcash. The sender, receiver and transaction amount can be kept confidential and cannot be viewed on the block browser. However, both parties can still verify the legitimacy of this transaction)
Faster and safer wave field virtual machine
Integrate other products, such as btfs (BitTorrent file system), to bring more decentralized apps dApp.
Explore the field of defi. DeFi - Decentralized Finance.  Decentralized finance.

In 2008, a person named Satoshi Nakamoto published a paper on bitcoin: a point-to-point e-cash system (original PDF version of the paper), which opened the curtain of bitcoin's popularity all over the world.

The underlying blockchain technology of bitcoin was also found later. Its technical characteristics such as decentralization, traceability and tamperability can be applied to financial, traceability and other scenarios. Whether you want to know about blockchain or bitcoin, we believe that bitcoin, as the birthplace and first application of blockchain, is the first point you need to know more before you get started.
What is bitcoin and how to get it? This article will teach you how to understand and use bitcoin.
1. Account opening
If you want to own bitcoin, whether you buy it at the exchange or transfer it to you, you need a bitcoin account. What materials does bitcoin need to bring to open an account and which institution to open an account? Without any materials, just download a bitcoin wallet.
Little knowledge: bitcoin wallet is another big topic. First of all, it should be clear that the digital currency wallet is not a real "wallet". The currency is not stored in the wallet, but on the chain mentioned above (essentially a pile of numbers). The wallet is just an application that allows you to open an account, query the balance and transfer accounts. In fact, in theory, every currency will be its own wallet. Therefore, most wallets on the market are easier to use, aggregate currencies, or safer. Some are decentralized, while others are cold wallets, hot wallets and managed wallets.
If you are interested, you can click the link below to learn more.
Using the light wallet on the chain can let you know more about some "anti human" designs such as bitcoin's private key, address and mnemonic words. Bitpie and imtoken are relatively old wallets. People with good English can even use the official wallet of bitcoin; Hosted wallets are easier to use, but the private key is not kept by yourself.
With a bitcoin wallet, all you need to do is move your fingers and open an account.
An account of bitcoin consists of a pair of keys (private key, public key). The account owner can use his private key for digital signature, and the public key can verify the signature. The public key can be generated by the private key, but the private key cannot be generated with the public key. That is, the so-called "asymmetric encryption" (reference link: blockchain 100 Q 60 | what is the asymmetric encryption algorithm?). This is also the reason why bitcoin is called digital cryptocurrency, because the whole system depends on the basis of cryptography.
Little knowledge: what does the hash calculation mean here?
Hash calculation has the following characteristics:
1. Mapping data of any length to large integer of fixed length;
2. When the data changes arbitrarily, the calculated results are completely different;
3. Cannot reverse the original data content from the hash result.
There are many implementations of hash algorithms, such as the SHA-256 algorithm used by bitcoin. The hash value is an integer expressed in hexadecimal; As long as the original content changes slightly, the hash result will be thousands of miles worse. Then each time the original content is changed, the hash value obtained is equivalent to a random number selected from the 256 power of 1 to 2. In this way, others cannot calculate the public key through the account address. So you can safely tell others your address and accept the other party's transfer without worrying about account theft. Unless you lose your private key.
When you have your first bitcoin account, you are very happy; But you're also frustrated because it's empty. How to make your wallet bulge?
You have the following ways to achieve this goal:
1. Bitcoin "mining"; The competition is fierce, and the opportunities for ordinary people are slim, but they can rent machines to mine. For details, we can understand that the "easy investment" cloud computing power platform of strategic incubation of planet daily is officially launched to help investors "hold" bitcoin
2. Spend money to buy at the exchange. See this article "how to have the first bitcoin in your life?". At present, the major exchanges we commonly use are centralized platforms with low security. Of course, there are decentralized exchanges, but they are rarely used. Click the link to learn more.
3. Let your good friend transfer some to you; (if you have such friends.)
2 bookkeeping
When you have a bitcoin account and bitcoin, you can transfer between different accounts. The minimum unit of bitcoin is 1 Cong, 1 Cong = 0.00000001btc When we use Alipay to transfer money to others, it is actually the amount of charge that the bank is responsible for deducting your account, add to the account of the other side, give you the bill, and charge your service fee.
Bitcoin transfer steps are similar, but there is no bank role. So in the process of bitcoin transfer, who will deduct the money and who will record the bill?
Different from the banking system, there is a decentralized accounting method: distributed ledger. That is, the ledger is no longer maintained by the banking system, but jointly maintained by participants. It is simply understood as: everyone can participate in bookkeeping. The person who maintains the ledger is generally called a node, also known as a miner.
In the blockchain, transactions are arranged in chronological order. A blockchain is the packaging of a pile of transactions, and blocks can be regarded as a page of ledger.
The bookkeeper of each page of the ledger (that is, the blocker of this block) must be selected through a competition to obtain the power of bookkeeping. After recording this page, broadcast it to everyone else. This process is called block, also known as "mining".
Others can verify these transactions through cryptography. As mentioned above, the account owner can digitally sign with his private key and verify the signature with his public key. Other people involved in bookkeeping can synchronize the latest account book of this block / page and continue to dig on it. At the same time, in the blockchain, each page of the ledger (each hash) is linked, and the hash value of the previous block is recorded through the hash algorithm mentioned above.
In such a distributed system, each node independently maintains a complete transaction ledger, which is also called "distributed ledger". The approval of most nodes is required every time. No node can tamper with the account book alone. Unless it obtains the consent of 51% of nodes, it cannot succeed. This is the so-called 51% attack.
The system operation will not be affected if any node exits the network or goes down. Compared with single node centralized system, this method has high security. Nodes are distributed all over the world. Each node connects with nearby nodes to form a global P2P network. This is also the material basis for the global circulation of bitcoin.
As mentioned in the previous section, if an account wants to know its balance, it can be queried through the wallet.
However, only nodes have complete ledger information, and wallets also need to query their own balance through nodes. So where is the node? I can't see or touch it. Where can I find it? Fortunately, you don't have to bother to find nodes. Your "bitcoin wallet" will help you do it.
In fact, if bitcoin wallet wants to tell the transaction information to the node, it must be connected to at least one node in the bitcoin network. When connected to the node, bitcoin wallet itself becomes a node in the network. However, compared with the whole node with a complete ledger, the wallet node is a "lightweight node", because it does not record a complete ledger, I didn't go "mining".
Curious, you still want to ask one more question: how does bitcoin wallet find nodes?
Very simply, in the process of the development of bitcoin network, there will be some long-term stable nodes called "seed nodes". When developing bitcoin wallet software, it will write the domain names of these "seed nodes" into the code, and ask the "seed nodes" for an active node address list through DNS dynamic query. With these nodes as the media, bitcoin wallet can join the network.
For example, Mr. Chen gave miss.com through his bitcoin wallet LV transferred 0.05btc, which was recorded by the global bitcoin network nodes through the "distributed ledger".
Transfer record: Mr. Chen - > miss LV: 0.05btc of course, the name will not be recorded in this way, but the bitcoin account of the two people, similar to:
1AC4fMwgY8j9onSbXEWeH6Zan8QGMSdmtA -> 1JWq3G8pqCo6jZGhLHpctYap5yVScqGxkv : 0.05btc
Such an accounting process is actually the so-called blockchain. Bitcoin is the first application of blockchain.
3 issuance / Mining
Since it is money, you will ask, how did it come from in the beginning?
This involves the issuance of bitcoin.
Ordinary currencies are issued by some institutions such as the central bank, but in bitcoin, the generation of each block is accompanied by the generation of new currency (this is what is written in the program. Don't ask me why). Whoever wins the bookkeeping right of this round of blocks will get the latest bitcoin.
Bitcoin issued a total of 21 million. The initial block reward is 50 BTCs, that is, for each block excavated, the miner will get 50 BTCs. The system stipulates that for every 210000 blocks (about 4 years), the reward for block output will be reduced by half until it is as little as 1 Cong, the smallest unit of bitcoin. Therefore, the block reward will be adjusted to 25 BTCs after 2012 and 12.5 in 2016. The next halving will be in 2020. This competition process is like digging new gold coins, so everyone will call it mining and call the account book maintainer "miner".
At this point, the incentive mechanism of bitcoin has been involved, that is, why are nodes willing to waste resources to keep accounts?
In fact, in order to reward the nodes for bookkeeping, the bitcoin system is designed so that each user needs to pay the service charge for verifying the transaction when transferring money. At the same time, the nodes that join the network earlier can obtain the newly issued bitcoin (until all bitcoins are issued). In this way, miners can get two parts of their income every time they keep accounts.
4 consensus mechanism: pow
You know, now a bitcoin is worth $10000, so one block from the billing node can get 12.5. Doesn't everyone want to dig?
Bitcoin system has designed a set of competition mechanism in order to make everyone obtain the right of accounting fairly.
The system requires competitors to guess a random number that meets the requirements through SHA-256 operation. Whoever finds it first will get the bookkeeping right. You can understand this process as guessing numbers randomly, who guesses who wins first.
This number, which is guessed at random, will actually be recorded in the header of the block and will always be recorded in the account book as a random number. If you remember the above, you will find that each block mentioned in this article will record the hash value of the previous block, and the hash value itself is calculated through hash calculation. This random number is actually a factor of hash calculation. (the composition of the block and the more detailed process can be seen in the "planet Research Report - the turning point of bitcoin mining industry and the economic cycle behind it")
Since SHA-256 operation is to collide with random numbers, the more people guess in the same time, the more likely they are to find the "answer" and obtain the bookkeeping right. Therefore, this competition mechanism is called workload proof, which is the so-called pow (proof of work).
In order to improve their computing speed, we can only continuously improve the computing power per unit time. Therefore, the hardware equipment has been continuously updated from the original notebook computer to today's professional mining machines (if you are interested, you can learn about the Research Report of planet mining, Figure 6, the update iteration of hardware equipment). Ordinary notebook computers can't dig, so there are mining pools. (if you want to know, you can read Xiaoming's study notes to understand what the mine is for.)
Computing devices are becoming more and more advanced. However, the bitcoin system also has a very interesting setting. It will automatically adjust the difficulty and keep the block time at 10 minutes as much as possible.
Friends who are interested in mining may ask, can they still go mining now? Of course, but I can't use computers or even buy mine machines to dig. The cost is too high. Therefore, there is also a way for ordinary people to participate in mining in the market, which is equivalent to renting other people's machines to mine for themselves. (for details, please click the link to understand) at present, mining has become a relatively mature industry. If you are interested, this article has a more complete and detailed introduction: the inflection point of the industry of bitcoin mining and the economic cycle behind it
5 advantages and disadvantages of bitcoin
Now you have understood the operation principle of bitcoin system. All these complex designs are only for the following conditions:
1. Limited total quantity and reduced supply;
2. Cannot be forged;
3. Convenient and safe transaction;
These characteristics give people confidence that bitcoin can be used as a general equivalent, so slowly:
4. Widely recognized and accepted
In addition, bitcoin also has distinctive characteristics:
5. Decentralization;
6. Global distribution and circulation;
This includes both decentralization of issuance and distributed ledger.
The advantages of bitcoin are obvious, but the disadvantages are also obvious:
1. Bitcoin's "mining" mechanism consumes a lot of global energy;
2. The primary goal of currency speculation is to stabilize the value of bitcoin blindly;
3. The anonymity of the transaction is flawed. Compared with the previous blackmail virus, bitcoin is required to be used as ransom;
4. The total amount of bitcoin is limited, so it is a deflationary currency. The value only increases but not decreases, which may lead to hoarding by everyone, resulting in lack of liquidity in the market and eventually economic contraction;
5. The transfer is time-consuming and requires a handling fee;
6. Transaction concurrency capacity is limited.

Usdt is currently the most widely used and most valuable stable currency. It is issued by the centralized company tether. There are many different types of usdts on the market. What are the differences between them? Which transfer arrives the fastest? Which is the safest? What is the lowest handling charge?

Now introduce three mainstream usdts based on bitcoin, Ethereum and Tron. Bitcoin based and Ethereum based usdts are incompatible and cannot be transferred to each other. You can judge which kind of usdt belongs from the stored address.
Type 1
Usdt based on bitcoin network (based on Omni protocol)
This usdt is stored on the bitcoin address, so a small amount of bitcoin needs to be paid as the miner's fee for each transfer (on chain transfer).
In addition to bitcoin as miner's fee for transfer, each usdt transfer will generate a very small number of bitcoin transfers. Therefore, every time a bitcoin based usdt transfer is initiated, there must be at least 0.0002 bitcoins in the wallet address to ensure the successful transfer. Meanwhile, when receiving a usdt transfer, the payee will also receive a bitcoin transfer with the minimum amount.
Type 2
Ethereum based usdt (issued based on erc-20 protocol)
This usdt is stored on the Ethereum address. Correspondingly, gas, that is, ETH, needs to be consumed during each transfer (on chain transfer).
At present, the vast majority of usdts in the market are bitcoin based usdts, and the share of Ethereum based usdts is very low (about 3%).
Type 3
Based on Tron network (wave field)
Usdt based on trc20 protocol of Tron network is stored in the address of Tron. Recharge and withdrawal are carried out through Tron network.
Which kind of transfer is the fastest?
Because the wave field network TPS reaches more than 10000 TPS
At present, the quickest transfer to the account is the wave field usdt.
Which usdt transfer is the safest?
It was said that the dpos27 super nodes in the wave field are not as secure as the other two networks. The safest is bitcoin network.
Which usdt is better and the service charge is the lowest?
To sum up, the absolute security and speed of blockchain cannot be shared for the time being,
1. The usdt of omnini, a bitcoin network, is recommended for large transfer. The handling fee is expensive and slower, but it is the safest
2. The usdt of erc20 is selected for the medium quota, with average handling fee, average speed and high security
3. Wave field usdt can be used for small amount, which is faster. There is no handling charge for wave field network transfer itself (the trading platform may charge some).

According to the official news of huocoin wallet, huocoin wallet has officially supported huocoin ecological chain heco and all hrc20 tokens. Users can make fast and low-cost online transfer through huocoin app, which improves the transfer experience of hrc20 format assets such as husd and HBTC. According to the operation team of huocoin wallet, a version supporting heco DAPP will be released in the next few days to help users participate in the heco defi project.

Huocoin wallet supports heco chain and hrc20 token. This article was included by blockchain at 17:42:52 on January 6, 2021. The article comes from the network and does not represent the viewpoint of blockchain. If you like huocoin wallet supporting heco chain and hrc20 token, please share it with your friends. Blockchain network selects articles on blockchain information, wallets, trading platforms, projects, etc.
Related news:
Huocoin wallet was elected as the super representative of wave field: on December 3, the ecological information of wave field showed that huocoin wallet was successfully elected as the super representative of wave field (Tron), providing block and package trading services for wave field network, and participating in wave field network governance as a super representative. Huocoin wallet stood out from 291 candidates and became one of the 27 super representatives, which means that huocoin wallet has extensive trust and influence in wave field ecology.
Huo Coin Wallet was elected as the super representative of wave field. This article was included by blockchain at 18:25:35 on December 3, 2020. The article comes from the network and does not represent the view of blockchain. If you like Huo Coin Wallet to be elected as the super representative of wave field, please share it with your friends. Blockchain selects articles such as network blockchain information, wallet, trading platform and project. [2020/12/3 18:25:35]
Voice | huocoin wallet team: huocoin wallet has supported the 14 main chain currencies: at the media communication meeting held on July 18, huocoin wallet team said that huocoin wallet has formed unique advantages in multi currency support, POS stacking pledge and internationalization. At present, it has supported the top 14 main chain currencies. In terms of Iost, ont and atom pledge, the pledge amount or user amount obtained by means of profit transfer without handling charges are among the best. According to will Huang, general manager of Huo COIN WALLET business unit and Huoxin business unit, Huo Coin Wallet will release important news in cross chain in the near future. [2019/7/19]
On site | fire Coin Wallet upgrade will support more currencies: Fire Coin Wallet upgrade will participate in EOS community contributions, such as independent research and development of EOS DAPP and provide more online services and applications; Participate in the formulation and provision of EOS payment labels, and work hand in hand with community partners; Participate in community activities to give more users the opportunity to access and use EOS. In DAPP exploration, the wallet will provide DAPP front-end framework to optimize DAPP performance and experience; Provide DAPP SDK and protocol to empower DAPP developers; Cooperate with DAPP developers, encourage and support developers and provide more services. In the future, fire Coin Wallet will launch more main chain currencies, such as TRX, XRP, DCR, etc. [2018/10/31]

1. Download token pocket:

https://www.tokenpocket.pro/
2. Create Wallet
*For new users registered for the first time, click [I don't have wallet] and select [Huo coin ecological chain] to create it. Users who have wallets to import can choose [I have wallet].
*Back up mnemonics, select mnemonics in order on the verification page and confirm.
3. After creation, go back to the wallet address of Huo coin ecological chain, click "+" to add tokens. Or enter token or contract address above to search.
4. Click [discovery] at the bottom of the home page and enter solo at the top of the discovery page Top click [go to DAPP] to enter.
5. Select the corresponding asset from the drop-down list and click authorize.
Click [confirm payment] and note that a small amount of HT is required as the handling fee.
6. Deposit, withdraw and withdraw income

On May 12, the okexchain main network officially supported EVM and started the ecological construction on the chain at the same time.

According to the plan, okexchain will invite sushiswap, bounce, chainlink and other well-known projects for product deployment in the first stage, and then open and deploy colorful innovative projects. After the operation is stable, it will be fully open, and anyone can freely deploy the contract.
For users, if they want to participate in the mining of okexchain main network, they can not only use tokenpocket and other mobile digital wallets, but also use the general metamask wallet. The specific tutorials are as follows:
Step 1: Download and register metamask
If metamask is installed, you can directly jump to step 2.
If it has not been installed before, you can visit the official website（ https://metamask.io/ ）Download, remember to surf the Internet scientifically
After downloading metamask, create your own login password and mnemonics according to the prompts.
Remember: be sure to back up and keep mnemonic words. Don't easily disclose them to others.
Step 2: set okexchain main network
When you open metamask, you can see that the wallet is on the Ethereum main network by default. Click Ethereum master network and click Custom RPC in the drop-down menu.
Enter the following information in the pop-up form:
Network Name: okexchain mainnet (can also be customized)
Add RPC URL: https://exchainrpc.okex.org
Chain ID: 66
Symbol: OKT (new version: metamask of 9.5.2, please fill in eth if there is any transfer problem, and the gas actually consumed is still OKT)
Blockchain browser URL: https://www.oklink.com/okexchain/
After entering the above information, click "save" to successfully configure.
Step 3: recharge transfer
If you want to participate in the mining of okexchain main network, you need to recharge your wallet (including part of OKT used as gas fee). The specific steps are as follows:
Set the metamask wallet to okexchain main network mode, and then copy the address.
If your currency is in the exchange (take Ouyi okex as an example, the rest are similar), directly copy the above address to the currency withdrawal address column and submit it for confirmation. The operation steps of other currencies are the same.
Step 4: participate in project mining
Okexchain ecological construction is initially divided into three stages:
Phase 1: from May 10 to May 20, invite sushiswap, bounce, chainlink and other world-famous projects to deploy products in okexchain and test the public chain at the production level;
Phase 2: starting from May 21, this phase will open the deployment of colorful innovation projects. The deployment contract at this stage requires super node voting;
Stage 3: after the construction of the first two stages, okexchain will operate stably and will be fully open at that time. Anyone can freely deploy contracts. The rich chain ecology will bring okexchain into a new stage.
When participating in the mining of the above projects, users need to link the metamask wallet with the official website of the project. For specific mining details, please pay attention to the announcement of each project.
It should be noted that okexchain itself is a completely decentralized public chain, which is unable to assess the risk of the project, which requires users to carefully participate in relevant project investment to avoid capital loss

Money security and cash withdrawal tutorial: wallet transfer, C2C point-to-point transaction

September 8, 2020
In the previous article, we introduced the four ways of cash in currently supported by coin security, so that you can start Canadian currency investment through coin security platform.
However, in investment, "giving money" is equally important. After all, money has its value only when it is taken back and used.
Therefore, this paper will introduce two ways of cash out: wallet transfer and C2C point-to-point transaction.
(if you are already familiar with Jinjin readers, these two methods have also been introduced in the previous article, and the principle is almost the same!)
The 20% discount code of coin security registration will be permanently reduced. The registration will be given us $1, and the real name authentication and transaction will be given us $5 again!
1、 Wallet withdrawal (transfer from coin security to external wallet)
2、 C2C cash withdrawal (transfer from coin security to legal currency back to account)
Note: common problems of C2C platform
summary
Relevant contents:
1、 Wallet withdrawal (transfer from coin security to external wallet)
This method is the same as the cash in method, mainly through the transfer between cryptocurrency wallets to complete the cash out method.
The following will take BNB as an example to see how to transfer cryptocurrency from "Coin Wallet" to "external trust wallet".
1. Enter the "cash wallet" page:
2. Find the item of BNB and click "withdraw" on the right:
3. Open your trust wallet and find BNB address and memo:
In BNB, you will see the options of bep2 and erc20, which can be selected according to the agreement on your original Wallet:
Bep2: agreement of coin security chain developed by coin security
Erc20: smart contract protocol based on Ethereum
4. Paste the transfer address on the coin security to complete the transfer
Copy and paste the address of the external wallet on the coin security, and enter the transfer amount at the same time to complete the transaction!
(the handling charge for cash out is 0.1%, priced in BNB, which is quite cheap)
2、 C2C cash withdrawal (transfer from coin security to legal currency back to account)
If you want to convert the cryptocurrency into "Taiwan dollar / US dollar" to pay out the money, this method can meet your needs.
The so-called C2C is the point-to-point trading platform of "legal currency and encrypted assets" provided by coin security.
Similar to the concept of online mall, different publishers can put cryptocurrencies on the shelf, and users can choose to buy them.
This method is very similar to "online shopping": you first select the currency you want to buy on the platform, and then the system will remit the transfer information. After you transfer Taiwan dollars (other currencies), the system will automatically put the encrypted currency into your currency security account!
C2C platform features the following:
The web version will be launched in February 2020
Free of handling charges
Support multiple currencies, including legal currency and cryptocurrency
On the C2C platform, there are usually "yellow check" and "no check" next to the name of the merchant (seller). The difference is that "the former is a merchant that has passed the verification of currency security and has paid a deposit", and "the latter is a merchant that publishes advertisements outside currency security and can be anyone". For buyers, it is recommended to choose those who pass the verification (with yellow tick) or have a high transaction rate.
Anyone on the C2C platform can sell coins on the shelves. For both buyers and sellers, they may encounter some disputes. Therefore, the suggestions are as follows:
Coin security is only a third-party platform. The whole matchmaking is a consensual transaction between buyers and sellers (just like online shopping), so we need to pay more attention.
You must complete mobile phone verification and personal identity verification before using C2C service.
Generally, there are "yellow check" and "no check" next to the name of the merchant (seller): the difference is that the former is a merchant that has passed the currency security verification and pays a deposit; The latter is a business that publishes advertisements outside Qian'an, which can be anyone.
For buyers, it is more secure to choose sellers with "yellow check" or high transaction rate. Please keep in touch with the merchant at any time to confirm the transaction status during the process of buying money.
For sellers, sometimes they may receive black money from unknown sources. If they collect money rashly, they will face the situation that their bank accounts will be frozen, because this may be money laundering by fraud groups through Sellers on C2C. In case of such situation, the seller can cancel the transaction independently and suggest immediate response to coin security customer service.
For users who deliberately do not buy and cancel their orders more than three times on the same day, money security will prohibit transactions on the same day. If this is done for two consecutive days, it will be blacklisted and the use of C2C platform will be permanently prohibited; Five transactions with a 7-day completion rate of 0 will also be blacklisted.

1、 Cold wallets and hot wallets have different functions. The function of the cold wallet is to store bitcoin, while the function of the hot wallet is to use bitcoin.

2、 Cold wallets and hot wallets have different definitions. Cold wallet refers to the bitcoin storage technology developed and launched by blockchain digital asset storage solutions, while hot wallet refers to that users can use bitcoin on any browser and mobile device.
3、 Cold wallets and hot wallets have different network states. Generally, cold wallets do not allow the Internet to access the private key storage location, while hot wallets allow the Internet to access the private key storage location.
Bitcoin is characterized by decentralization, anonymity, can only be used in the digital world, does not belong to any country or financial institution, and is not subject to geographical restrictions. The holder can exchange it anywhere in the world. The tool to facilitate bitcoin transactions is the private key. Once the private key is leaked, bitcoin may be stolen.
Hackers can steal the private key when the holder is online, but they cannot steal the private key when not online. Therefore, for the security of bitcoin, the holder will store the private key in the cold wallet. However, cold wallets are not necessarily safe.
The notebook recording the private key can also be called a cold wallet. If the notebook is lost, bitcoin may be stolen. Bitcoin cannot and should not be used as currency in the market.

The official version of metamask is a very practical little fox wallet plug-in in the browser with chrome as the core. The software can help users quickly manage their own ether coins. Like most wallets, the plug-in does not store wallet data. The private key and password of all wallets are held by the user. Even if the plug-in stops updating, you can use the private key in your hand to get your money back from other wallets. In addition, the plug-in is a simple wallet. Its main selling point is that users can easily interact with Ethereum's smart contract. It can also be used to participate in ICO. If you need it, you are welcome to download it.

Features of the latest version of metamask:
1. Use metamask's keystore, secure login and digital wallet to manage your digital assets
2. Generate passwords and keys on the software and ensure account security
3. Browse and connect to decentralized websites
4. Control the information shared with the website you use and the information that is not publicly available
The latest version of metamask features:
1. Buy, store, send and exchange tokens
The Chinese version of metamask wallet can be used as a browser extension and mobile application to provide you with key vault, secure login, token wallet and token exchange - everything you need to manage digital assets
2. Explore blockchain applications
The easiest way to connect applications to blockchain is to use blockchain. When interacting on a new decentralized network, you are always in control
3. Own your data
Generate passwords and keys on your device so that only you can access your account and data. You can always choose between shared and confidential content
The latest version of metamask help:
1. Copy the wallet address, which is your Ethereum wallet address. You can withdraw money through the exchange or other wallets and transfer it to eth or tokens
2. Click Add token
3. Search the token address you want to add
4. You can also customize the added token address
5. Click export private key to get the private key of the address, which can be imported into other wallets for use
6. Click Security and privacy again and click Show mnemonics to get the mnemonics associated with the whole account, or import them into other wallets
Metamask latest update log:
1. More secure user experience.
2. "Seedphrase" is now called "secret recovery phrase"! We include an explanatory video to communicate why you should keep your recovery phrases safe and secret, as well as best practices. This change applies only to English; Translation into other languages is about to begin.
3. If the address you send is an ens name with homonyms or confusing characters, you will see a warning.
4. With the improvement of some customized network user experience, you can now exchange assets on the binance smart chain.

Sometimes when we use imtoken wallet, it is likely that it will be deleted inadvertently, or the mobile phone is stolen, or the mobile phone cannot be turned on

that
At this time, how can we repair the previous wallet after changing the new machine? After all, if there is property in the wallet, let's teach you how to restore the true identity of imtoken wallet. Naturally, what we must pay special attention to here is that the premise is that you must remember your mnemonic words well, otherwise you don't have to think about it.
imToken2. 0 International Edition has introduced the effect of Multi Chain Wallet. In order to better facilitate, fast, efficient customers and improve their wallet with safety factor, we have adopted the definition of "creating real identity". In this way, customers can manage the Multi Chain Wallet under a real identity. The original text mainly explains the whole process of repairing the real identity of imtoken wallet data information.
Imtoken wallet official website: https://imtkoen.im Introduction to wallet repair and real identity graphics
1. Click the "repair real identity" function button on the start page of imtoken wallet to repair the real identity. How to restore the real identity after the imtoken wallet is unloaded? Can forgetting mnemonics be repaired?
2. Click "repair real identity", open "I have read carefully and want the above terms", and click "again" to choose. Enter mnemonic words into the box. It should be noted that after importing imtoken wallet mnemonics, you can not easily be disciplined by the user name and password set in the past, and set a new user name and password again. This is why "mnemonic words" are hard for us.
How to restore the real identity after the imtoken wallet is unloaded? Can forgetting mnemonics be repaired?
3. After setting imtoken wallet user name and password and typing transaction password message reminder. You can click the "repair real identity" function button. Then the current status will be repaired successfully. Here's an important hint. Forgetting mnemonics is no way to repair the real identity of imtoken wallet. Therefore, we should remember mnemonics well in the case of establishment.

In fact, this question needs to be answered by ourselves. The market determines the life cycle of the wave field chain troncain. The wave field chain breaks many variables into countless small variables by using the system and mode, fully avoids the risk of market synchronization, returns to this mechanism, solves the exchange risk, and the real international market elasticity is sufficient. Therefore, the platform of wave field chain is as stable as a rock.

Is the wave field chain reliable
Wave field TRX is one of the three major public chains in the world. TRX currency is the 16th largest currency in the world. Sun Yuchen is the founder and a student of lakeside University. With the blessing of Ma Yun, he is also the chief node of the former ripple currency in China.
Blockchain technology creates three public chains, including Ethereum eth, EOS grapefruit and Tron wave field.
The wavelength chain troncain was developed by the Chinese. The wave field chain smart contract (contract) project started in August this year and was carried out synchronously all over the world. It arrived in China on September 3 and has now spread to more than 30 countries around the world.
Performance budget within 15 generations:
Within 15 generations, 100000 numbers and 10000 Trxs will be invested.
100000 * 10000 = 1 billion TRX
1 billion * 0.2 yuan = 200 million yuan
Within 15 generations, 10000 numbers and 100000 Trxs will be invested.
10000 * 100000 = 1 billion TRX
1 billion * 0.2 yuan = 200 million yuan
Within 15 generations, 10000 numbers and 10000 Trxs will be invested.
10000 * 10000 = 100 million TRX
100 million * 0.2 yuan = 20 million yuan
Wavelength chain troncain does not need hype. Don't worry about shutting down the network.
You can make money in three places
1. Profit from lock in dividends (1% per day)
2 . Earn twice as much money in the market (5% to 30%)
3 . Currency appreciation money (TRX at least 5-10 times)
What is the wave field chain troncain smart contract? It's a smart contract. The code is written in a dead chain. No one intervenes.
Low level Trust: Celebrity house, all kinds of endorsements, shouting, even ordinary contracts have not been signed.
Without any restriction, running is the norm of breaking promises! There is no guarantee.
Intermediate Trust: according to the contract, an agreement is signed under the framework of laws and regulations, which is legally binding. Lack of enforcement.
Ultimate Trust: no need for trust. Smart contract, code cold execution, earth explosion, cold execution.

You may not know how to use bitcoin wallet. One feature of bitcoin wallet is that we don't need to go to real name authentication. We can trade without real name authentication. Friends who are interested in bitcoin wallet and don't know how to use it can come and have a look.

How to use bitcoin Wallet:
1. Introduction to bitcoin's official website (. ORG) -- Getting Started Guide
2. Select Wallet
3. Select the mouse to move to the first icon in the figure below, and then select download
4. Select the appropriate version to download
5. After downloading, unzip and then install. The most important thing is to scan the whole disk with anti-virus software! My wallet has been updated for five days, so I'm 30 weeks behind, usually more than 200 weeks
6. Wait for the wallet to synchronize the data packet of about 13g and download it to disk C. then there is experience to teach you how to put the data packet on another disk!!! After the anti-virus scanning is completed, let's encrypt the wallet!!! Select Settings - encrypted wallet,
7. If you choose to receive, you can know your unique wallet address. You can also create multiple wallet addresses. Finally, pay attention to backing up your wallet!!! The way to back up your wallet is to select files - just back up your wallet. You can back up anywhere. You'd better back up several more to different addresses, USB flash drives or something!!
Summary: the above is all the "how to use bitcoin wallet"?