耐克区块链的地址是以什么开头的,耐克区块链的地址是以什么开头为准

耐克区块链的地址以0x开头，这是一种称为以太坊的区块链协议，以太坊是一个开源的、分布式的计算平台，它允许任何人开发和部署去中心化的应用程序。耐克区块链的地址是由以太坊分配的，用于标识每个区块链账户，它是一个唯一的标识符，也是一个可以接收和发送以太币的地址。

耐克区块链的地址以以太坊开头，以太坊是一个开源的、分布式的计算平台，它允许任何人开发和部署去中心化的应用程序。以太坊是一种去中心化的软件平台，它使用智能合约（smart contract）来实现分散的计算和记录，以太坊的技术允许开发者在这个平台上开发和部署去中心化的应用程序，耐克也是通过以太坊来开发和部署自己的区块链应用程序的。

耐克区块链的地址以以太币开头，以太币是以太坊的原生货币，它是一种去中心化的数字货币，它可以用来支付交易费用，以太币也可以用来支付以太坊上的应用程序和服务。耐克的区块链地址也可以接收和发送以太币，以太币可以用来支付耐克的区块链应用程序和服务。

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Ⅰ Blockchain Cheese | What is the TRC20 wallet address?

@blockchaincheese will teach you a little bit about blockchain every day.

TRC20-USDT is USDT issued by Tether based on the TRON network. The deposit address is the TRON address, and deposits and withdrawals are made through the TRON network. TRC20-USDT (USDT-TRON) uses the TRC20 protocol.

TRC-USDT has the lowest asset security, but the fastest transfer speed, and there are no handling fees for on-chain transfers. Friends who are very concerned about transaction speed can consider TRC-USDT, but due to security considerations, it is best to focus on small amounts.

In April 2019, TEDA announced the issuance of USDT based on the TRC-20 protocol on Tron, and TRC20-USDT was born. When TRC20-USDT was issued, it promised to be completely open and transparent, with zero transfer fees and transfers in seconds.

Unlike the first two, there is currently no handling fee for TRC20-USDT transfers, which is also a highlight of TRON. However, the current development of TRC20-USDT is not very mature and security cannot be guaranteed.

Ⅱ [Blockchain] What is a Bitcoin address?

A Bitcoin address is a 26- to 34-digit string of letters and numbers, which looks a bit like garbled characters. . But it is your personal Bitcoin account, equivalent to your bank card number. Anyone can transfer Bitcoin to you through your Bitcoin address.

Unlike the Bitcoin private key, it will not cause the loss of Bitcoins due to information leakage, so you can safely tell anyone your Bitcoin address.

All transfer transaction records of each Bitcoin address can be viewed through the blockchain browser.

Commonly used Bitcoin blockchain browsers include:
https://btc.com/block
https://www.blockchain.com/zh-cn/explorer

Our commonly used Bitcoin address formats generally include the following four types.

1. BASE58 format
BASE58 format is a common Bitcoin address format, usually starting with 1.

For example:

2. HASH160 format
HASH160 format is RIThe PEMD160 algorithm calculates the SHA256 signature of the 130-bit public key.

For example:

3. WIF compression format
WIF compression format is the wallet input format. It is the result of compressing the BASE58 format into a 130-bit public key format. This is the most The original Bitcoin public key calculated by the ECDSA algorithm.

For example:

4. 60-bit public key format
The 60-bit public key format is the result of compressing a 130-bit public key.

For example:

Bitcoin is based on mathematical cryptography. The great master Satoshi Nakamoto used the elliptical encryption algorithm (ECDSA) to generate the private encryption of Bitcoin. key and public key.

The public key can be calculated from the private key. The value of the public key will be used to obtain the Bitcoin address after a series of digital signature operations.

Bitcoin addresses are randomly generated by algorithms, so some people will ask, since they are all randomly generated, will Bitcoin addresses be repeated? Regarding this issue, there is probably no need to worry.

Because the length of Bitcoin’s private key is a 256-bit binary string, the probability that two randomly generated private keys will be exactly the same is one in 2^256 ≈ 10^77. This number is as big as yours It is simply unimaginable that the probability is much smaller than winning the lottery; so don’t worry, everyone’s Bitcoin address is unique.

Ⅲ What chain starts with ox?

The chain that starts with ox is the Ethereum chain.
Because each public chain has its own special payment address, for example, the address on the ETH chain starts with OX, the address on the TRON chain starts with T, and the address on the Binance chain starts with BNB. In fact, the CKB chain also has its own address, which starts with CKB.

Ⅳ Basic knowledge of the currency circle, USDT three brothers Omni, ERC20.TRC20

Let’s not talk about the recent HB Global Station’s opening of USDT-anchored token recharge and withdrawal services on the HECO network.

The three forms of USDT are:

Omni-USDT based on the Bitcoin network, the deposit address is the BTC address, and the deposit and withdrawal go through the BTC network; based on the Ethereum ERC20 protocol For ERC20-USDT, the deposit address is an ETH address, and deposits and withdrawals are via the ETH network;

For TRC20-USDT based on the TRON TRC20 protocol, the deposit address is a TRON address, and deposits and withdrawals are via the TRON network.

Open the Sogou search APP to view more exciting information

1. Omni-USDT

2014 1In January, USDT was born on the Bitcoin network, and was officially launched on several major exchanges in February 2015. Before 2018, there was only one transfer path for USDT, and that was Omni-USDT based on the Bitcoin network. Omni-USDT is stored on a Bitcoin address, so every time you transfer, you need to pay Bitcoin as a miner fee. Omni-USDT is on the Bitcoin network chain, and the cost of hacking is very high, so the asset is relatively secure. However, its transaction speed is very slow and cannot meet the needs of today's encryption trading market. However, many large transactions will still tend to Omni-USDT.

2. ERC20-USDT

In early 2018, the Ethereum network became popular, smart contracts became popular in blockchain applications, and ERC20-USDT appeared. Like Omni-USDT, using ERC20-USDT also requires payment of absenteeism fees, but the transfer speed has been significantly improved. Due to its good security and fast transfer speed, ERC20-USDT is widely accepted by the market. TEDA, the issuer of USDT, has also begun to abandon Bitcoin Omni in favor of the more efficient Ethereum ERC20.

With the recent issuance of additional USDT on Ethereum by TEDA, the number of ERC20-USDT has increased significantly and now exceeds 50% of the total amount of Omni-USDT. In addition to officially abandoning the Omni protocol, mainstream exchanges have also begun to support ERC20-USDT. On July 3, Binance Exchange announced that it would switch from the OMNI network to the ERC20 network. Although the USDt of the original OMNI network can continue to be recharged and credited, the USDT of the OMNI network will not be able to be withdrawn.

3. TRC20-USDT

In April 2019, TEDA announced the issuance of USDT based on the TRC-20 protocol on Tron, and TRC20-USDT was born.

When TRC20-USDT was issued, it promised to be completely open and transparent, with zero transfer fees and transfers in seconds. Different from the first two, there is currently no handling fee for TRC20-USDT transfers, which is also a highlight of TRON. However, the current development of TRC20-USDT is not very mature, and security cannot be guaranteed.

How to distinguish?

First of all, you need to understand one thing: there is no difference between the three types of USDT in the exchange, but they are not interoperable on the chain. This means that USDT on Omn cannot be transferred to the other two chains, so you must pay attention to the address type when depositing and withdrawing USDT on the exchange.

The most obvious difference between the three:

The address of Omni-USDT starts with 1

The address of ERC20-USDT starts with 0x

The address of TRC20-USDT starts with T

So, how to choose?

Omni-USDT has the best security, but the transfer speed is too slow.

If you have large orders that you are not in a hurry to trade, you can choose Omni-USDT first.

ERC20-USDT has average security and transfer speed, and is suitable for frequent transactions in the digital currency market.

If you often do short-term transactions, you can give priority to ERC20-USDT.

TRC20-USDT has the fastest transfer speed, and there is no handling fee for on-chain transfers, but the security is relatively low.

If you are very concerned about transaction speed, you can consider TRC20-USDT, and it is recommended to focus on small amounts. Billions of USDT have been issued on Tron, and the security is actually good.

IV [Blockchain Course] 3.1—The Concept and Characteristics of Digital Wallet

1. The Concept of Wallet

Life The traditional wallet in is equivalent to a container that can be used to store cash, but for digital currency wallets, it is not used to store digital currency, but a management container used to store and manage (including private keys and public keys). The digital wallet contains an address (similar to your bank card account number) and a private key (similar to your bank card password).

Private key: The user uses the private key to sign the transaction, thereby proving that he has the right to output the transaction. The transaction information is not stored in the wallet, but in the blockchain.

Public key: used to generate addresses and store transactions. Information is generated by the private key through an asymmetric encryption algorithm.

Wallet address: It is a 42-digit hexadecimal hash value string starting with a double letter (representing the currency). The address of ETH is a 42-digit hexadecimal hash value string starting with 0x. For example: If a wallet is compared to a bank card, then the wallet address is the bank card number.

The relationship between the three is simply: the private key generates the public key, and the public key generates the address. In short, the address is your account, bank card number, and the private key is your account password. So if someone steals your private key, they will definitely have ownership of your account.

2. Characteristics of wallet

Analogy to a bank card, the private key is like our bank card password + bank card account number, and the digital currency address generated based on the public key is like Our bank card account number is used as the transfer address for transactions. Digital currency is stored in the trading market. The bank card of the wallet keeps our address and password information, giving us control over the digital currency corresponding to the address.

3. The value of wallet to blockchain

Encrypted digital currency is a digital currency based on blockchain technology. Digital currency wallet is an application specially used to manage these assets. The wallet application creates one or more wallet addresses based on cryptographic principles, and each wallet address corresponds to a key pair: a private key and a public key.

The public key is generated by performing certain mathematical operations based on the private key, and corresponds to the private key one-to-one. The public key is mainly used for external transactions. Each transaction must use the private key to sign the transaction record to prove control over the assets in the relevant wallet address.

The private key is the only certificate that can prove control over digital assets. For digital asset wallets, the private key is the most important. The way the private key is generated and stored determines whether the asset is safe or not.

So the purpose of the wallet is to store the private key. As long as you have the private key, it means you have the corresponding token.

However, the current digital currency market has problems such as inconvenient digital management, high transaction and exchange thresholds, insufficient blockchain performance and unreasonable design, high blockchain development costs, difficulty in connecting to reality, and lack of application scenarios. And other issues. To put it simply, tokens developed based on different public chains require their own wallets, so our mobile phones are filled with apps for multiple wallets.

4. Several key words of digital wallet:

1. Wallet name:

The wallet name of the digital currency wallet is when you create the wallet Account name or nickname, each wallet address corresponds to an account name, because usually digital wallets can create multiple wallet addresses. In order to facilitate identification and management, it is necessary to set a name for each wallet address.

2. Password:

When you create a digital currency wallet account, you need to set a password. When you transfer and pay, you need to use this password to confirm; Password confirmation is also required when backing up and exporting the private key or keystore; in addition, if you use keystore to import the wallet, you also need password confirmation, and you can reset the password when importing using the private key.

3. Mnemonic phrase:

When you create a wallet, you will be asked to record a string of mnemonic phrases, usually consisting of multiple (12, 15, 18 , 21 digits) composed of irregular English words without any rules, equivalent to the password of your digital wallet + payment password. You will be prompted to save the mnemonic phrase when creating a wallet. Please be sure to save it. It is recommended to record it in a separate notebook with a pen and keep your notebook.

4. keystore:

keystore is a file (json) where the wallet stores the private key. The wallet password is required when using this file. When you choose to export or import keystore, you need to enter a password. This password is the password you originally set for this wallet. This is different from using a private key or mnemonic phrase to import a wallet. Using a private key or mnemonic phrase to import a wallet does not require If you know the original password, you can reset it directly.

VI The difference between bep20 and bep2

BEP2 is the Binance Chain network, BEP20 is the Binance Smart Chain (BSC) network, and Binance Chain is the Binance exchange in April 2019. A blockchain launched in March, Binance Smart Chain is an innovative solution that brings EVM programmability and cross-chain interoperability to Binance Chain.

Binance Chain and Binance Smart Chain
The two concepts of Binance Chain and Binance Smart Chain are easily confused. Both are created by the Binance exchange. Binance Chain focuses on transfer transaction scenarios. It is not flexible enough to support more complex scenarios such as DeFi or NFT. Therefore, after the Binance Chain was launched in 2019. First half of 2020. Binance launched Binance Smart Chain BSC. And it will be officially launched in September 2020. If you want to participate in projects on BSC. Withdraw coins from Binance exchange. What is needed is the Binance Smart Chain address. rather than the Binance Chain address. The two are two independent blockchains. BSC is the isomorphic chain of Ethereum. Supports EVM (Ethereum Virtual Machine). The launch of BSC will greatly enhance the efficiency and application scope of Binance Chain and BNB. By introducing the Proof of Stake Authority (PoSA) consensus mechanism. BSC creates an ecosystem that allows nodes, token holders, developers and users to all benefit from the blockchain. Enjoy higher performance and more room for innovation. Binance Chain is a coin issued by the Binance exchange. Similar to Bitcoin. Binance Smart Chain is more like Ethereum. Various projects and applications can be released on this chain.

Blockchain
Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of "unforgeable", "full traces left", "traceable", "open and transparent" and "collectively maintained". Based on these characteristics, blockchain technology has laid a solid foundation of "trust" and created a reliable "cooperation" mechanism, which has broad application prospects.

Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of "unforgeable", "full traces left", "traceable", "open and transparent" and "collectively maintained". Based on these characteristics, blockchain technology has laid a solid foundation of "trust" and created a reliable "cooperation" mechanism, which has broad application prospects.

Ⅶ Blockchain USDT, those cold facts you don’t know

Recently, a fan sent a private message asking some questions about USDT #blockchain#Today, hnsfans will talk about some questions that you don’t know about USDT.

First of all, USDT, which we generally refer to as Tether, is a virtual currency that links cryptocurrency to the legal currency US dollar. It is a virtual currency that is stored in a foreign exchange reserve account and supported by legal currency. Users can use USDT for 1:1 exchange with US dollars at any time (simply put, it is a way for you to cash out, omit it here...please make up your own mind)

1. Based on For Omni-USDT on the Bitcoin network, the deposit address is a BTC address, and deposits and withdrawals are via the BTC network;

2. ERC20-USDT based on the Ethereum ERC20 protocol, the deposit address is an ETH address, and deposits and withdrawals The currency is on the ETH network;

3. Based on the TRC20-USDT TRC20 protocol, the deposit address is the TRON address, and the deposit and withdrawal are on the TRON network.

First of all, you need to understand one thing: there is no difference between the three types of USDT in the exchange, but they are not interoperable on the chain. That is to say, USDT based on Bitcoin and Ethereum-based are incompatible and cannot transfer funds to each other. You can determine which USDT belongs to from the stored address. Therefore, you must pay attention to the address type when depositing and withdrawing USDT on the exchange

The address of Omni-USDT starts with 1

The address of TRC20-USDT starts with T

< p> The address of ERC20-USDT starts with 0x

For large transfers, the USDT of Bitcoin network Omini is recommended. The handling fee is expensive and slower, but it is the safest

For medium transfers, it is the best Choose ERC20 USDT, which has average handling fees, average speed, and higher security

For small-amount transfers, you can use Tron USDT, which is faster. Tron network transfers themselves do not charge handling fees (some trading platforms You may charge some)

In summary, the absolute security and speed of the blockchain cannot be achieved at the same time, and it depends on each individual's needs! ! !

In addition, if the platform recharges USDT to the wrong recharge address of BTC, ETH, or TRX, you can only find the corresponding platform customer service, and some platforms can retrieve it.

There is also a wrong deposit situation. If you deposit into the ETH or TRX address of a trading platform that does not support ERC20TRC20 USDT, you may need to wait for the platform to launch the corresponding type.You can withdraw it only after agreeing on USDT.

The content described in this article is for reference only, and individual content is summarized on the Internet

ⅧAggregation of addresses of various blockchain browsers

1. USDT-BTC Browser:
1. https://www.omniexplorer.info/
2. https://www.oklink.com/usdt

2. BTC browser:
1. https://btc.com/
2. Bitcoin/Transaction https://blockchair.com/
3.btc JSON-RPC: https://github.com /btcsuite/btcd/blob/master/docs/json_rpc_api.md#getbestblockhash

3. ETH Browser:

Ⅸ What are the comparisons of common USDT

Tether USD (referred to as USDT), the Chinese name is Tether. It is a stablecoin issued by Tether, a company formerly known as Realcoin and registered in the Isle of Man and Hong Kong. In 2014, Realcoin changed its name to Tether. In 2015, Tether issued by Tether Company was launched on the trading platforms bitfinex and Poloniex.

Tether Company defines Tether in the "Tether White Paper: A Fiat Token Using Bitcoin Blockchain Transactions" as: Tethers, a digital currency linked to fiat currency, and users can use USDT at any time. 1:1 exchange with USD. Tether strictly adheres to the 1:1 reserve guarantee, that is, for every USDT token issued, its bank account will have 1 US dollar of funds guaranteed. Simply put, USDT is also one of the encrypted digital currencies that can be transferred, stored and consumed on wallets and trading platforms. But what makes it special is that USDT and the US dollar are anchored at a 1:1 ratio and can be redeemed for each other on the trading platform.
There is no difference between the three types of USDT in the exchange, but they are not interoperable on the chain. In other words, USDT on Omn cannot be transferred to the other two chains, so you must pay attention to the address type when depositing and withdrawing USDT on the exchange.

The most obvious difference between the three:

The address of Omni-USDT starts with the number 1 or 3

The address of ERC20-USDT starts withStarting with the number 0 and a lowercase x

The address of TRC20-USDT starts with a capital letter T