区块链的定义是什么？

区块链有两个含义：

The block chain has two meanings:

1、区块链(Blockchain)是分布式数据存储、点对点传输、共识机制、加密算法等计算机技术的新型应用模式。所谓共识机制是区块链系统中实现不同节点之间建立信任、获取权益的数学算法。

The block chain (Blockchain) is a new application model for distributed data storage, point-to-point transmission, consensus mechanisms, encryption algorithms, etc. The so-called consensus mechanism is the mathematical algorithm for achieving confidence-building and equity among the different nodes in the block chain system.

2、区块链是比特币的底层技术，像一个数据库账本，记载所有的交易记录。这项技术也因其安全、便捷的特性逐渐得到了银行与金融业的关注。

The block chain is the bottom technology of Bitcoin, like a database book that records all transactions.

狭义来讲，区块链是一种按照时间顺序将数据区块以顺序相连的方式组合成的一种链式数据结构，并以密码学方式保证的不可篡改和不可伪造的分布式账本。

In a narrow sense, the block chain is a chained data structure that sequences the data blocks sequentially together and ensures in cryptographically non-falseable and non-falseable distribution books.

广义来讲，区块链技术是利用块链式数据结构来验证与存储数据、利用分布式节点共识算法来生成和更新数据、利用密码学的方式保证数据传输和访问的安全、利用由自动化脚本代码组成的智能合约来编程和操作数据的一种全新的分布式基础架构与计算方式。

Broadly speaking, block chain technology is a completely new distributed base structure and calculation of data programming and operation using block chain data structures, using distributed node consensus algorithms to generate and update data, using cryptography to secure data transmission and access, and using smart contracts consisting of automated script codes.

区块链是一个信息技术领域的术语，是一个共享数据库。

The block chain is a terminology in the field of information technology and a shared database.

从科技层面来看，区块链涉及数学、密码学、互联网和计算机编程等很多科学技术问题。从应用视角来看，简单来说，区块链是一个分布式的共享账本和数据库，具有去中心化、不可篡改、全程留痕、可以追溯、集体维护、公开透明等特点。

At the technical level, block chains involve many scientific and technical issues such as , the Internet and . From an application perspective, block chains are a distributed sharing of and databases with decentralized, non-alterable, cross-cutting, retraceable, collective maintenance, transparency, etc.

这些特点保证了区块链的“诚实”与“透明”，为区块链创造信任奠定基础。区块链丰富的应用场景，基本上都基于区块链能够解决信息不对称问题，实现多个主体之间协作信任与一致行动。区块链是分布式数据存储、点对点传输、共识机制、加密算法等计算机技术的新型应用模式。

These features guarantee the “honest” and “transparent” character of the block chain and provide the basis for confidence in the block chain. The rich application of the block chain is based essentially on the fact that the block chain can solve information asymmetries and achieve collaborative trust and concerted action among multiple subjects. The block chain is a new application model for distributed data storage, point-to-point transmission, consensus mechanisms, encryption algorithms, etc. .

应用

application

区块链在国际汇兑、信用证、股权登记和证券交易所等金融领域有着潜在的巨大应用价值。将区块链技术应用在金融行业中，能够省去第三方中介环节，实现点对点的直接对接，从而在大大降低成本的同时，快速完成交易支付。

Block chains have potentially significant application value in financial areas such as international exchange, letters of credit, stock register and . Applying block chain technology at saves third-party intermediaries and allows point-to-point direct match-to-point payments to be made quickly while significantly reducing costs.

以上内容参考：百度百科——区块链

Reference: 100% encyclopedia-block chain

区块链是构建信任的基石，是实现信用传递，价值传递的可信网络。可靠的区块链基础设施，让企业、政府快速、高效的搭建区块链网络及行业应用，实现资金流、物流、信息流的可信快速流动，高效可信协同，助力降低协作成本，提升效率。
　　2021年5月27日，工业和信息化部、中央网络安全和信息化委员会办公室发布了《关于加快推动区块链技术应用和产业发展的指导意见》(工信部联信发〔2021〕62号)，文件中对区块链定义如下：
　　区块链是新一代信息技术的重要组成部分，是分布式网络、加密技术、智能合约等多种技术集成的新型数据库软件，通过数据透明、不易篡改、可追溯，有望解决网络空间的信任和安全问题，推动互联网从传递信息向传递价值变革，重构信息产业体系。