CREDIBLE ALLIANCE BLOCKCHAIN DIGITAL CALIBRATION CERTIFICATE SYSTEM AND OPERATION METHOD THEREFOR

• Main Authors: Xiong, Xingchuang, He, Wenkui, Fang, Xiang, Tian, Feng, Tang, Yichuan, Liu, Zhen
• Format: Patent
• Language: English
• Published: 08.12.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The present invention discloses a trusted alliance block chain 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 hyperledger fabric; a CA system (11) for management of all entity identity certificates and registration of identities in the system; a UTC time calibration server (12) for providing a UTC time calibration service for all block chain node servers of the system; and a digital calibration certificate subsystem (13) for generating, by means of alliance management, instrument organization management, and calibration institution management, a digital calibration certificate from calibration certificate data by a digital signature technology, extracting related entity information, and forming original information of multiple data blocks. The system can overcome the shortcomings of existing block chain technology-based digital calibration certificate technologies by establishing a calibration chain and a traceability chain which are reliable, trusted, secure, and continuously growing.