BLOCKCHAIN MANAGEMENT METHOD, BLOCKCHAIN MANAGEMENT PROGRAM, BLOCKCHAIN MANAGEMENT DEVICE, AND BLOCKCHAIN MANAGEMENT SYSTEM

摘要

[Problem] To provide a blockchain management method whereby it is possible to assess when having partially changed data that an area other than the changed section has not been tampered with. [Solution] Provided is a blockchain management method designed for a computer to execute the processes of: generating a first hash of data included in a partial block of a first block including a first region whereupon changing of data is prohibited and a second region whereupon changing of data is permitted, said partial block being obtained by excluding the second region from the first block; generating a second hash of data included in the first block; and adding the first hash and the second hash to a second block which is added subsequently to the first block, said second block including a first region whereupon changing of data is prohibited and a second region whereupon changing of data is permitted.