att区块链最新消息,atb区块链最新消息
AT&T区块链最新消息，为了推动区块链技术的发展，AT&T已经开始与多家企业合作，探索区块链技术的潜力。其中，三个关键词是AT&T，区块链和企业合作。
AT&TAT&T（美国电话电报公司）是一家全球性的电信服务提供商，是全球最大的固定电话和无线电话运营商之一。AT&T的业务包括数据、互联网、移动、家庭和小企业服务，以及全球综合通信服务。AT&T正在探索区块链技术，以提高其服务质量，并为客户提供更好的服务。
区块链区块链是一种分布式数据库，它利用加密技术和数字签名，在不受中心化控制的情况下，可以安全地记录和存储数据。区块链可以用于存储任何类型的数据，比如金融交易、智能合约、供应链管理等，还可以用于改善企业流程，提高效率和安全性。
企业合作AT&T正在与多家企业合作，探索区块链技术的潜力。这些企业包括英特尔、微软、IBM、谷歌等，他们正在探索区块链技术，提供更安全、可靠的服务。这些企业正在利用区块链技术，改善企业流程，提高效率和安全性，并为客户提供更好的服务。
请查看相关英文文档
1. Classification of blockchain
Currently, blockchain is divided into three categories, among which hybrid blockchain and private blockchain can be regarded as: generalized private chain, Public Blockchain Public Blockchain. This means that any individual or group in the world can send transactions, the transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. Public blockchain is currently the earliest blockchain and the most widely used blockchain. Each virtual digital currency of the Bitcoin series is based on a public blockchain, and there is only one blockchain in the world corresponding to this currency.
Extended information
1. Industrial blockchain industry blockchains: multiple pre-selected nodes in the group are designated as bookkeepers, and the generation of each block is jointly decided by all pre-selected nodes (pre-selected nodes participate in the consensus process), others Access nodes can participate in transactions but do not interfere with the accounting process (essentially, it is managed bookkeeping, but it becomes distributed bookkeeping). How many pre-selected nodes and how to determine the bookkeeper for each block become the main risk points of the blockchain ), anyone else can make limited queries through the blockchain’s open API. Private Blockchain Private Blockchain ((privateblockchains)): Only the general ledger technology of the blockchain is used for accounting. It can be a blockchain with exclusive written permission from a company or individual. This chain is not much different from other distributed storage solutions. At present (December 2015), conservative giants (traditional finance) want to try private blockchains, while the applications of public chains, such as Bitcoin, have been industrialized, and the application products of private chains are still being explored. Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Blockchain is an important concept of Bitcoin. Essentially, it is a decentralized database.
2. At the same time, as the underlying technology of Bitcoin, it is a series of data blocks associated with encryption methods. Each data block contains a batch of Bitcoin network transaction information, verify the validity of its information (anti-counterfeiting) and generate the next block. In fact, the word blockchain does not appear in the original English Bitcoin white paper, but appears in blockchain. In the earliest Bitcoin white paper, blockchain was translated as blockchain. This is the time when the Chinese word "blockchain" first appeared. The Cyberspace Administration of China issued the "Blockchain Information Service Management Regulations" on January 10, 2019, which came into effect on February 15, 2019. In a narrow sense, a blockchain is a chained data structure that combines data blocks in chronological order, and a tamper-proof and forgery-proof distributed ledger guaranteed by cryptography. Broadly speaking, blockchain technology is a new distributed infrastructure and computing method that uses blockchain data structures to verify and store data, distributed node consensus algorithms to generate and update data, and cryptography to Ensure the security of data transmission and access, using smart contracts composed of automated script code to program and operate data.
2. What is aitd?
Aitd is an artificial intelligence data token and a decentralized blockchain digital asset with a circulation of 1000000000 pieces.
The essence of blockchain is a shared database, which has the characteristics of "unforgeable", "full traces left", "traceable", "open and transparent" and "collective maintenance". Blockchain originated from Bitcoin, proposed by a man who called himself Satoshi Nakamoto on November 1, 2008.
Extended information:
Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. , each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block.
The original English version of the Bitcoin white paper does not actually appear in the word blockchain, but uses chain of blocks. In the earliest Chinese translation of the Bitcoin white paper, chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.
In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. Ledger.
Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses A new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data.
Generally speaking, the blockchain system consists of data layer, network layer, consensus layer, incentive layer, contract layer and application layer.
The data layer encapsulates the underlying data blocks and related data encryption and timestamp technologies; the network layer includes distributed networking mechanisms, data dissemination mechanisms, and data verification mechanisms; the consensus layer mainly encapsulates various types of network nodes Consensus algorithm; the incentive layer integrates economic factors into the blockchain technology system, mainly including the issuance mechanism and distribution mechanism of economic incentives; the contract layer mainly encapsulates various scripts, algorithms and smart contracts, which is the programmable feature of the blockchain The foundation; the application layer encapsulates various application scenarios and cases of the blockchain.
In this model, the chain block structure based on timestamps, the consensus mechanism of distributed nodes, economic incentives based on consensus computing power, and flexible programmable smart contracts are the most representative innovations of blockchain technology. .
3. Are blockchain and Bitcoin the same thing?
Blockchain and Bitcoin are not the same thing. Blockchain is a distributed accounting technology, while BitcoinBitcoin is a peer-to-peer digital currency, but Bitcoin uses blockchain as its underlying technology.
4. What is aitd?
aitd is an artificial intelligence data token and a decentralized blockchain digital asset with a circulation of 1000000000 pieces. The essence of the blockchain is a shared database, which has the characteristics of "unforgeable", "full traces", "traceable", "open and transparent" and "collective maintenance". Blockchain originated from Bitcoin, proposed by a man who called himself Satoshi Nakamoto on November 1, 2008.
Bitcoin was officially born on January 3, 2009. It is a virtual encrypted digital currency in the form of P2P. It does not rely on the issuance of specific monetary institutions and is generated through a large number of calculations based on specific algorithms. The biggest difference between Bitcoin and other virtual currencies is that its total quantity is very limited and it is extremely scarce.
The total number of Bitcoins is 21 million. There is no centralized issuer. They can be bought and sold on any computer connected to the Internet. Anyone can mine, buy, sell or collect them no matter where they are. During the transaction process, outsiders cannot identify the user's identity information.
Bitcoin supports 7*24 transactions globally, but Bitcoin transactions are not allowed in China because the price of Bitcoin is very high. On December 27, 2020, the price of a single Bitcoin exceeded US$26,850 per coin. Ordinary investors simply don't have that much money to invest at such a price.
5. What is digital currency blockchain
1. Blockchain is a ledger that records digital currency transactions
Take Bitcoin as an example. It does not have a physical form, but exists in In a dedicated ledger. All Bitcoin transactions are recorded in the ledger. Through the transaction records, we can calculate the number of Bitcoins owned by each user. If a person owns Bitcoin, it means that transaction records related to him can be found in the ledger.
The ledger mentioned here is a piece of software, which we can download from the official Bitcoin website, and the underlying technology used in this software is the blockchain. To facilitate understanding, we usually say that the blockchain is the ledger.
The reason why blockchain is used as the underlying technology of the ledger is to achieve the decentralization of digital currency. It can be said that the starting point for a series of problems encountered by digital currencies and the solutions provided comes from decentralization.
2. Blockchain is a technology that ensures the safe use of digital currencies. Everyone knows that blockchain technology has two major characteristics: encryption and non-tamperability, which can reduce the probability of errors during the use of digital currencies. reduced to 0. Since digital currencies have higher requirements for encryption, blockchain technology must be used to support them. Currently, not only many industries in our country are using blockchain technology, but many foreign countries are also actively using blockchain technology. Blockchain technology.
[Extended Information]
Blockchain is the underlying technology of digital currency, and Bitcoin is the first successful application of blockchain.. To understand this problem, we must first recognize the facts:Not all blockchains need to issue digital currencies. Currently, our country strongly supports "coinless blockchains." Generally speaking, public blockchains, that is, public chains, need to issue tokens as "rewards" to motivate users and maintain The system runs, while ordinary blockchains, often called alliance chains, can or cannot be issued, private blockchains are mostly used for internal audits of companies and generally do not need to issue coins. Here is a detailed explanation of the differences between the three blockchains:
1. Public blockchain: A blockchain where anyone in the world can read, send transactions for validity confirmation, and anyone can participate in its consensus process. Bitcoin and Ethereum are typical examples of public blockchains. The application of public blockchain is a fully distributed blockchain. The blockchain data is open and user participation is high. At the same time, it is easy to produce network effects and is easy to apply and promote. Therefore, this kind of blockchain operation is very important to a large extent. Relying on incentive mechanisms, tokens such as Bitcoin and Ethereum are used as "rewards" for incentives, so public chains need to issue tokens to maintain their own development and ecology.
2. Community Blockchain (Alliance Chain): It means that the participation of nodes in the blockchain is selected in advance. There are usually good network connections and other cooperative relationships between nodes. The data on the blockchain can be open It can also be internal. For partial distribution, we can regard it as "partial decentralization". Each alliance in the chain has its own centralized management. For example, R3CEV of more than 40 banks is a typical alliance chain. Chains usually don’t require a lot of money, but there are also individual alliance chains that choose to send money to motivate members within the alliance to contribute, so there are no restrictions on the chain.
3. Private blockchain: refers to a node with only a limited scope of participation, such as a specific organization’s own users, strict permission management for data access and use.. Write permissions in a completely private blockchain It is only in the hands of the participants, and the read permission can be opened to the outside world or restricted to any extent. It is currently mainly used for internal audit work of the company. Therefore, the private chain does not need to issue currency, and it does not have the characteristics of decentralization. It is a kind of centralization management mechanism.
6. What is a blockchain and what is a digital currency blockchain?
In a narrow sense, a blockchain is a system that connects data blocks sequentially in chronological order. A
chained data structure composed of various methods,
and a cryptographically guaranteed distributed ledger that cannot be tampered with or forged. Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses automated scripts to A new distributed infrastructure and computing paradigm that uses smart contracts composed of codes to program and manipulate data.
Now, mainstream digital currencies are basically developed based on blockchain technology. Blockchain is the underlying technology of digital currency. Domestic tea-based digital currency Puyin is based on blockchainTechnology developed.
7. What exactly is blockchain
Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Simply put, blockchain is a decentralized distributed ledger database.
Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. After reading this, you may still be confused. In fact, in vernacular terms, blockchain is a decentralized distributed ledger database. The advantage of this distributed ledger is that buyers and sellers can trade directly without any intermediary. Everyone has a backup, even if your copy is lost, it will not be affected.
So what is distribution and decentralization? Take marriage registration as an example. In the past, when two people got married, they had to go to the Civil Affairs Bureau to go through the formalities, and then enter the information into the computer to complete the legal process. What if we use blockchain technology? As long as two people agree to get married and post a message in their circle of friends, the marriage process is completed and there is no need to go to the Civil Affairs Bureau. Your friends are common witnesses. They may be scattered around the world, but their mobile phones will help you record the information and tell others who want to know the situation.
If you want to conceal your marriage information, you used to have to modify the records on the Civil Affairs Bureau's computer, but now you have to modify the records on the mobile phones of all insiders at the same time. The more people who know about it, the less likely it is to modify it. Therefore it is an impossible task. This is distribution and decentralization.
On the network, every once in a while, a block will be generated. This block is equivalent to a network record book, which is used to record relevant information that has occurred over a period of time. Waiting for this record book When the record is full, a new record book will be generated. Once the information is recorded, all participants will be notified and everyone's record book will be updated simultaneously.
These record books are eventually connected in series with each other. This is blockchain technology. Because of the use of cryptography technology, if someone wants to unilaterally tamper with the message, it will be verified through the blockchain algorithm protection mechanism. If the time point does not match and the related information does not match, other people will not update their record books. Then this information is invalid.
Therefore, compared with traditional information storage technology, blockchain technology is more secure, transparent, and information is irreversible.
Blockchain is not equal to Bitcoin, it is just an underlying technology invented to realize the digital currency of Bitcoin. Blockchain can be applied in a wider range. In addition to digital currency, it can also be applied in financial aspects such as P2P lending, global payment, micro-finance, electronic payment, and remittance. It can also be used in people's livelihood aspects such as intellectual property, elections, and notarization. The prospects for future development are huge.
8. BTC and US on BiEasyWhat do DT, ETH, BCH, and LTC mean?
The meanings of BTC, USDT, ETH, BCH, and LTC are respectively:
1. BTC
Bitcoin (BitCoin), the concept was originally proposed by Satoshi Nakamoto in 2009. The open source software designed and released based on Satoshi Nakamoto's ideas and the P2P network built on it. Bitcoin is a P2P form of digital currency. Peer-to-peer transmission means a decentralized payment system.
2. USDT
Tether is a virtual currency that links cryptocurrency to the legal currency U.S. dollar. It is a currency kept in a foreign exchange reserve account. , a virtual currency backed by legal currency.
3. ETH
Ethereum is an open source public blockchain platform with smart contract functions. It provides decentralized blockchain through its dedicated cryptocurrency Ether. EthereumVirtualMachine to handle point-to-point contracts.
4. BCH
Bitcoin Cash is a new version of Bitcoin with different configurations launched by a small group of Bitcoin developers.
At 20:20 on August 1, 2017, Bitcoin Cash will start mining, and an amount of Bitcoin Cash (BCH) equivalent to the number of Bitcoins will appear in the account of each Bitcoin investor.
5. LTC
Litecoin, abbreviation: LTC, currency symbol: Ł; is an online currency based on "peer-to-peer" technology , is also an open source software project under the MIT/X11 license. It helps users make instant payments to anyone in the world.
Reference source: Network-Bitcoin
Reference source: Network-Tether
Reference source: Network-Ethereum
< p>Reference source: Network-Bitcoin CashReference source: Network-Litecoin
