System and procedure for managing traceability data for hydrogen

Abstract

The goal is to manage hydrogen traceability data efficiently and with minimal data overhead. A hydrogen traceability data management system is a system for managing traceability data for hydrogen fed through multiple histories and comprises: a history information receiver that receives first history information associated with an intended change to the hydrogen history and second history information associated with an unintended change to the hydrogen history; a storage device that stores history data comprising the first history information, the second history information, and an ID; and a data manager that controls the generation and rewriting of history data.The data manager generates history data that includes a newly assigned ID when the first history information is changed, and rewrites the history data while retaining the ID when the second history information is changed.