[definition]
The strict definition of blockchain refers to the distributed database technology that multiple nodes in the peer-to-peer network jointly maintain a continuous growth chain list ledger constructed by time stamps and orderly recording data blocks through the consensus mechanism designed based on cryptography technology. The technical scheme allows any number of nodes in the participating system to calculate and record all the information exchange data in the system for a period of time into a data block through cryptographic algorithm, and generate the fingerprint of the data block for chain and verification. All participating nodes of the system jointly determine whether the record is true.