On 20 19 65438+ 10/0, the National Internet Information Office issued the Regulations on the Management of Blockchain Information Services. Blockchain has entered the public's field of vision and become the focus of society. From the perspective of science and technology, blockchain involves many scientific and technical issues, such as mathematics, cryptography, Internet and computer programming.
From the application point of view, 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 building trust in the blockchain. 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 coordinated action among multi-agents.
Blockchain is a new application mode of distributed data storage, point-to-point transmission, knowledge mechanism and encryption algorithm. Blockchain is an important concept of Bitcoin. Essentially, it is a decentralized database. 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 to verify the validity of the information (anti-counterfeiting) and generate the next data block [8]. In fact, the word blockchain did not appear in the original English bitcoin white paper, but appeared in the blockchain. In the Chinese translation of the earliest bitcoin white paper [9], blockchain was translated into blockchain language. This is the time when the word "blockchain" first appeared in Chinese.