Data structure of right holder terminal, user terminal, new right holder terminal, right holder program, user program, new right holder program, content use system and root object data

摘要

The right holder terminal 1 has an identifier of a contract executed in the blockchain system 6, a hash value of controlled file data that identifies the content data managed by the contract, an identifier of the right holder of the content data in the file management system 9, and use. The state data Bs associated with the person's identifier is stored, the reference data R including the contract identifier is generated, and the reference data R and the root object data Obj including the link name and hash value of the controlled file data are stored. The root object generation unit 123 to be generated is provided.