The three stages of blockchain development are

Three stages of blockchain: Generally, the development of blockchain is divided into three stages, which are respectively called blockchain 1.0 stage, blockchain 2.0 stage and blockchain 3.0 stage. Blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming.

1. Concept definition: What is a blockchain? From the perspective of science and technology, from the perspective of application, in short, blockchain is a distributed account book and database, which has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency. These characteristics ensure the "honesty" and "transparency" of the blockchain and lay the foundation for the blockchain to create trust. The rich application scenarios of blockchain are basically based on the fact that blockchain can solve the problem of information asymmetry and realize cooperation, trust and concerted action among multiple subjects.

2. Blockchain is a new application mode of distributed data storage, point-to-point transmission, * * identification mechanism, encryption algorithm and other computer technologies. 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 related by cryptography. Each data block contains a batch of information about bitcoin online transactions, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

3. The original English version of the Bitcoin white paper does not actually have the word blockchain, but uses blockchain. In the Chinese translation of the earliest bitcoin white paper, blockchain was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared. The National Internet Information Office issued the Regulations on the Management of Blockchain Information Services on 20 19 10, which came into effect on February 20 15. As an important breakthrough in independent innovation of core technology, the security risk of blockchain is regarded as a major shortcoming that restricts the healthy development of the industry at present, and frequent security incidents have sounded the alarm for the industry. To embrace the blockchain, we need to accelerate the exploration and establishment of a security system that adapts to the blockchain technology mechanism.