Method for enabling access to past transactions in a blockchain network and nodes for configuring the network

摘要

A method for efficiently accessing a past transaction in a blockchain network is provided. A first node 101 generates a new block from one or a plurality of transactions in which a storage device or a storage medium accessible from the storage unit 101C or the first node 101 is stored as a memory pool (S201). . When the adopted block is agreed in the blockchain network 100, the generated block is added to the blockchain at each node (S202). In the embodiment of the present invention, various consensus algorithms can be adopted, provided that the consensus algorithm has finality. Each node generates and stores an identifier for uniquely identifying each transaction based on the height of the added block and the order in the block (S203). [Selection] Figure 2