Blockchain originated from bitcoin. On November 1, 2008, a person calling himself Satoshi Nakamoto published bitcoin: a point-to-point e-cash system, which described the architecture concept of e-cash system based on P2P network technology, encryption technology, timestamp technology and blockchain technology, which marked the birth of bitcoin. Two months later, the theory came into practice, and the first creation block with serial number 0 was born on January 3, 2009. A few days later, on January 9, 2009, the block with serial number 1 appeared and connected with the creation block with serial number 0 to form a chain, marking the birth of the blockchain