Blockchain has two meanings:

1. Blockchain (Blockchain) is a new mode of application of computer technology such as distributed data storage, peer-to-peer transmission, *** knowledge mechanism, encryption algorithm and so on. The so-called *** knowledge mechanism is a mathematical algorithm in the blockchain system to realize the establishment of trust between different nodes and the acquisition of rights and interests.

2. Blockchain is the underlying technology of Bitcoin, like a database ledger that records all transactions. This technology is also gradually gaining the attention of the banking and finance industry for its security and convenience.

Narrowly speaking, blockchain is a distributed ledger that combines blocks of data in chronological order in a chained data structure that is cryptographically guaranteed to be tamper-proof and unforgeable.

Broadly speaking, blockchain technology is a new distributed infrastructure and computing method that utilizes a block-chain data structure to verify and store data, distributed node*** knowledge algorithms to generate and update data, cryptographic methods to ensure the security of data transmission and access, and smart contracts consisting of automated script code to program and manipulate data.