What does blockchain mean?

Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is an important concept of Bitcoin.

In essence, it is a decentralized database, and at the same time, as the underlying technology of Bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of information about bitcoin online transactions, which is used to verify the validity (anti-counterfeiting) of the information and generate the next block.

Blockchain is closely related to people's production and life in public management, energy, hotel management, transportation and other fields, but the centralized nature of these fields has also brought some problems, which can be transformed through blockchain.

Decentralized fully distributed DNS service can query and resolve domain names through peer-to-peer data transmission services in the network. It can be used for some important infrastructure operating systems and firmware that have not been tampered with. It can monitor the status and initialization of software, find out bad tampering, and ensure that the data transmitted by the system using Internet of Things technology is useless and tampered with.

The above content refers to Baidu Encyclopedia-Blockchain