区块链的狭义定义和广义定义,区块链的狭义定义是什么

近几年，随着区块链技术的快速发展，关于区块链的定义也发生了变化，有了狭义和广义的定义。那么，区块链的狭义定义是什么呢？

区块链的狭义定义：区块链是一种分布式数据库，它的特点是每一个节点都可以拥有数据库的完整副本，每一个节点都可以自由的添加数据，但是无法修改或删除已有的数据。所有的节点都可以共同确认新的数据，并将其写入数据库，从而形成一个可信的数据库。

区块链的狭义定义更多的是指其本身的技术，即分布式数据库技术，它具有去中心化、不可篡改、共识机制等特点，可以用来存储和管理数据。

区块链的狭义定义并不涉及其应用，它只是一种技术，但是它可以应用于许多领域，比如金融、物联网、数字货币等，可以为这些领域带来新的发展机遇。

总之，区块链的狭义定义是指一种分布式数据库技术，它具有去中心化、不可篡改、共识机制等特点，可以用来存储和管理数据，而且可以应用于许多领域，为这些领域带来新的发展机遇。

『一』What is blockchain

Blockchain is a term in the field of information technology. Blockchain is an uninterrupted digital ledger of economic transactions that can be programmed to record not just financial transactions, but almost anything of value. Simply put, it is a decentralized, distributed database of immutable records that is managed by a cluster of computers but does not belong to any single entity. Blockchain is stored as a database or flat file.

『二』What is 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", created a reliable "cooperation" mechanism, and has broad application prospects.

From a technological perspective, blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming. From an application perspective, simply put, blockchain is a distributed shared ledger and database.

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is an important concept of Bitcoin. It is essentially a decentralized database.

At the same time, 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 its Validity of information (anti-counterfeiting) and generation of the next block.

In fact, the word blockchain does not appear in the original English version of the Bitcoin white paper [4], but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper [9], chain of blocks was translated into blockchain.

『三』What does blockchain mean? One article will teach you how to understand blockchain

According to Xinhuanet: On the afternoon of October 24, 2019, the Political Bureau of the CPC Central Committee announced The 18th collective study was conducted on the development status and trends of blockchain technology.

When organizing this study, Xi Jinping said: "The integrated application of blockchain technology plays an important role in new technological innovation and industrial transformation. We must use blockchain as a core technology An important breakthrough for independent innovation, clarify the main direction, increase investment, focus on conquering a number of key core technologies, and accelerate the development of blockchain technology and industrial innovation."

"Blockchain" for a time This word has become popular all over the Internet. People with a software development background may have a certain understanding of blockchain technology, but most of us are ordinary people. As ordinary people, when faced with the term "blockchain", it is full of questions. doubt, what does blockchain mean, what does distributed ledger represent, and what is the difference between centralization and decentralization?

The Internet defines blockchain as: Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. 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 The data block contains information about a batch of Bitcoin network transactions and is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

Simply speaking, blockchain is a decentralized database.

This is the function of distributed accounting. Distributed accounting brings benefits and convenience to our lives.

In real life, "blockchain" technology can be widely used in medical care, travel consumption, financial payment and other fields in the future. It will bring convenience to people’s lives, and at the same time, it will also comprehensively improve our financial environment and medical environment.

『四』What is blockchain and how should it be explained

1. P2P is very popular now, and when it comes to P2P, Bitcoin has to be mentioned. As for Bitcoin, it has an important concept, which is blockchain.

2. What is blockchain? Blockchain is actually equivalent to a disintermediated database, which is composed of a series of data blocks. Each of its data blocks contains information about a Bitcoin network transaction, which is used to verify the validity of the information and generate the next block. 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-tamperable. Fake distributed ledger. In a broad sense, blockchain is actually a distributed infrastructure and computing method that is used to ensure the security of data transmission and access.

3. The infrastructure of blockchain The blockchain is composed of six infrastructures: data layer, network layer, consensus layer, incentive layer, contract layer and application layer.

4. Purpose of blockchain Blockchain is mainly used to solve trust and security issues in transactions.

『Wu』 The most straightforward explanation of blockchain

Blockchain is a technology that can ensure that the data on the chain cannot be tampered with or forged.

Blockchain has five important technical characteristics: decentralization, non-tamperable information, openness and transparency, collective maintenance and reliable database.

Specific explanation of blockchain:

1. Specific explanation of the definition of blockchain

In a narrow sense,Block chain is a chain data structure that combines data blocks in a chronological order and is cryptographically guaranteed to be an untamperable and unforgeable distributed ledger.

Broadly speaking, blockchain is a distributed infrastructure and computing method. It is a security technology used to ensure data transmission and access.

In summary, in summary, the blockchain is equivalent to a disintermediated database, consisting of a series of data blocks. Each of its data blocks contains information about a Bitcoin network transaction, which is used to verify the validity of the information and generate the next block.

2. Blockchain infrastructure

Blockchain consists of six infrastructures: data layer, network layer, consensus layer, incentive layer, contract layer and application layer.

3. Purpose of blockchain

Blockchain is mainly used to solve trust and security issues in transactions.

4. Applications of blockchain in different fields

From a technological perspective, blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming; from an application perspective From a perspective, blockchain is a distributed shared ledger and database, which is decentralized, cannot be tampered with, leaves traces throughout the process, can be traced, collectively maintained, and is open and transparent.

5. Issues that need attention in blockchain

As an important breakthrough for independent innovation of core technology, the security risk of blockchain is a major shortcoming, and security incidents occur frequently. A wake-up call for the industry. To embrace blockchain, we need to accelerate the exploration and establishment of a security system that adapts to the blockchain technology mechanism.