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比特币简称BTC（Bitcoin）,是P2P(将小额资金聚集起来对有资金需求的一种小额借款模式，已接入征信系统)形式的数字货币,也是加密货币。
Bitcoin, or Bitcoin, is a digital currency in the form of P2P (a small borrowing model that brings together small funds to meet the need for funds, with access to the mail system) and an encrypted currency.
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它的核心技术就是区块链，使用密码学技术确保货币交易的安全性和不可篡改性，完全中心化，意思为它不接受任何政府和金融机构的控制，而是依赖于网络上的节点和矿工，可以在网络上进行匿名交易，数量有限，限制为2100万个，可以通过挖矿或购买交易所中心的现有货币获取
Its core technology is block chains, the use of cryptography to ensure the security and integrity of currency transactions, and full centralization, meaning that it does not accept control by any government or financial institution, but relies on network nodes and miners, that it can deal anonymously on the network, limited to 21 million, and that it can be obtained through mining or buying the currency available in the centre of the exchange.
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比特币的交易数据会打包到一个，区块链接收到第一个区块后，交易会得到进一步的确认，在连续得到6个区块之后，交易基本就不可逆转的得到了确认。
Bitcoin's transaction data are packaged to one, block links receive the first block, the transaction is further confirmed and, after six consecutive blocks, the transaction is largely irreversibly confirmed.
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所有的交易历史都会存储到中，持续延长，新区块一旦加入就不会被移走，每隔10分钟就会有新的区块增加上去。
All trade history will be stored in the centre and extended continuously, new blocks will not be removed once added, and new blocks will be added every 10 minutes.
货币特征： 中心化、全世界流通、专属所有权、低交易费用、无隐藏成本、跨平台挖掘
Monetary characteristics: centralization, worldwide circulation, exclusive ownership, low transaction costs, no hidden costs, cross-platform mining
优点： 无发行机构、可匿名、免税、跨境汇款不会留下跨境交易记录
Advantages of : No issuer, anonymous, tax-free, cross-border remittances do not leave a record of cross-border transactions
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一串数据串组成的数据库，多方共同维护，一起达成共识写入数据，不会有人单方面控制数据。每个计算机自己计算自己的账，变成共同记账，数据也就保持了一致性、公开透明。
Each computer calculates its own account, becomes a common account, and the data is consistent, open and transparent.
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每个数据块（即“区块”）都包含了一定数量的交易记录和其它元数据，同时包含了前一区块的数字指纹既哈希值，形成了一个不可篡改的“链”，区块链只许写入不可删除和修改。
Each of the data blocks (i.e., “blocks”) contains a certain amount of transaction records and other metadata, as well as digital fingerprints of the previous block, which constitute an undisguised “chain” that can only be written and modified.
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可是陌生网络交易如果能够获得对方的信任呢，区块链节点会审核到对方节点信息是否属实，若发现不属实会自动原路退回到账户中。
But if a strange network transaction can be trusted by the other party, the block chain nodes examine the validity of the information from the other node and, if it is found to be untrue, automatically return it to the account.
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目前，区块链技术已广泛应用于数字货币（比如比特币）、智能合约、供应链管理、物联网、医疗保健、民生、政务、司法、能源、制造业等等。
Block chain technology is now widely applied to digital money (e.g. Bitcoin), smart contracts, supply chain management, material networking, health care, livelihood, government, justice, energy, manufacturing, etc.
web3.0是互联网的第三次迭代，特点在于基于去中心化和基于区块链技术，web 3.0 的核心内涵就是信息的高度整合和高度的智能化服务，将分散式的应用程序和服务（dApps）带入了Web，为用户提供了更加隐私安全的体验。
Web3.0 is the third time of the Internet and is characterized by the fact that the core content of web 3.0 is a highly integrated and highly intelligent service based on decentralised and block-based technologies, bringing decentralized applications and services (dApps) into Web and providing users with a more private and secure experience.
web3.0和web2.0发生变化的是思想的创新，可以解决社会信息优化信息聚合的问题，所以主观的核心就是高度的智能化服务
The changes in web3.0 and web 2.0 are the innovation of ideas that can solve the problem of optimizing the aggregation of information in social information, so the subjective core is a highly intelligent service.
| web2.0 | web3.0 |
|---|---|
| 可读写，交互式互联网 | 可读写、可拥有、多方互动、契约互联网 |
| 社交、电商、媒体图文、交互需求、用户参与度、社交和自媒体时代 | 以数字化契约(共识系统+智能合约)代替互联网的中介角色，图文+交互+用户拥有所有权 |
| 人和人之间互动为中心，聚集在平台 | 用户为中心，强调自主 |
| 用户创造、平台所有、控制、分配 | 用户创造、用户所有、控制、参与分配 |
最新的应用场景都有哪些呢？
互联网是资金、合约以及各种数据化价值资产的互通，就会出现信任问题，所以基于区块链技术的互联网可信度就被指出，目前web3.0的大概指可读+可写+可信任，在信任的基础上搭建了一个生活化的互联网虚拟场景，页面展示从2D转3d
Since the Internet is an interface between funds, contracts and various digitally valued assets, the credibility of the Internet, based on block chain technology, has been pointed out that the current web3.0 refers to readable + write + trustable, building a living Internet virtual scene based on trust, with a page display from 2D to 3d
具有的特点？
1、api（应用程序编程接口）是全球范围的，也就是XMLWebServices 2、速度达到10G，应用不用担心速度问题 3、是一个技术框架或操作系统
1, api (application programming interface) is global, i.e. XMLWebServices 2 at a speed of 10G, application without fear of speed 3 is a technical framework or operating system 3
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比特币使用了区块链技术来实现一个去中心化的数字货币系统。在比特币系统中，所有的交易都被记录在区块链中，并且每个参与者都可以验证这些交易的有效性。
Bitcoin uses block chain technology to achieve a decentralised digital monetary system. In bitcoin, all transactions are recorded in block chains and each participant can verify the validity of these transactions.
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比特币是第一个基于区块链技术的加密货币，区块链是一种去中心化的数据库加密技术，而web3是区块链技术在互联网上的应用。
Bitcoin is the first encrypted currency based on block chain technology, a decentralised database encryption technology, and web3 is an Internet application of block chain technology.
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Web3是区块链技术在互联网上的应用。它包括了许多新兴技术，如去中心化应用程序（DApp）、智能合约、数字身份和数字资产等。通过使用Web3技术，用户可以直接与区块链系统进行交互，而不需要依赖中心化的第三方机构。
Web3 is an Internet application of block chain technology. It includes many emerging technologies, such as decentralised applications (DApp), smart contracts, digital identities, and digital assets. By using Web3 technology, users can interact directly with block chain systems without relying on centralized third-party institutions.
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比特币是区块链技术的第一个应用，区块链技术提供了比特币系统的核心功能，而Web3则是区块链技术在互联网上的应用，为用户提供了更多的服务和功能。
Bitcoin is the first application of block chain technology, which provides the core functionality of the Bitcoin system, while Web3 provides more services and functionality to users by using block chain technology on the Internet.
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