Tamper-proof electronic certificate system and implementation method thereof

The invention discloses a tamper-proof electronic certificate system and method, and belongs to the technical field of block chains. Comprising a display layer used for interacting with a user, and the user manages a file, issues a certificate and verifies the certificate through a browser or mobile application software; the service layer comprises an on-chain intelligent contract module and an off-chain service module, the on-chain intelligent contract module is an intelligent contract and is responsible for identification evidence storage and addressing verification of electronic information, and the identification evidence storage adopts an improved consensus mechanism; the off-chain service module is responsible for account management, mechanism management and operation log management of system users; the infrastructure layer comprises a block chain and a data storage module, the block chain module comprises a consistency management module and a state synchronization management module, and the data storag