CREDIBLE ALLIANCE BLOCKCHAIN DIGITAL CALIBRATION CERTIFICATE SYSTEM AND OPERATION METHOD THEREFOR

摘要

A trusted alliance blockchain digital calibration certificate system and an operation method therefor. The system comprises: a distributed ledger system (10) of a distributed storage system based on a super ledger; a CA system (11) used for management of all entity identity certificates in the system and registration of identities; a UTC time calibration server (12) used for providing a UTC time calibration service for all blockchain node servers of the system; and a digital calibration certificate subsystem (13) used for generating, by means of alliance management, instrument unit management, and calibration institution management, a digital calibration certificate from calibration certificate data by means of a digital signature technology, extracting related entity information, and forming original information of a plurality of data blocks. The system can overcome the shortcomings of existing blockchain technology-based digital calibration certificate technologies by establishing a calibration chain and a traceability chain which are reliable, trusted, secure, and continuously growing.