METHOD FOR PROVING PRINCIPAL AND INTEREST RECEIPT BASED ON BLOCK CHAIN

摘要

A blockchain-based method of providing principal and interest receipts is disclosed. The method of providing a principal and interest receipt certificate based on a block chain of the present invention comprises the steps of: receiving a principal and interest receipt certificate from a P2P (PEER TO PEER) company server by an API (APPLICATION PROGRAMMING INTERFACE) server; Distributing and storing the principal and interest receipt received through the API server by the blockchain server based on the blockchain; And it characterized in that it comprises the step of transmitting the principal and interest receipt certificate distributedly stored based on the blockchain in connection with the linked server by the blockchain server to the user terminal of the smart bill.