Patent ID: 11868322
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A content use system comprising:
a file management system managed by an administrator,
a distributed ledger system including a distributed ledger,
an administrator terminal used by the administrator, and
a participant terminal used by a participant who participates in the file management system,
wherein the administrator terminal comprises:
a file management system generation unit configured to issue a contract generation transaction for generating, in the distributed ledger, a contract in which a network identifier that identifies the file management system is associated with an identifier of the participant terminal in the distributed ledger system, and notifying the participant terminal of the network identifier and an identifier of the contract; and
a file management control unit configured to issue a registration transaction for registering, in the contract, connection information of the administrator terminal in the file management system, acquire connection information of the participant terminal in the file management system from the contract, and establish a P2P connection with the participant terminal based on the acquired connection information, and

wherein the participant terminal comprises:
a file management control unit configured to, in response to being notified by the distributed ledger system of the identifier of the contract that corresponds to the network identifier that identifies the file management system, issue a registration transaction for registering, in the contract that corresponds to the notified contract identifier, connection information of the participant terminal in the file management system, acquire connection information of the administrator terminal from the contract that corresponds to the notified contract identifier, and establish a P2P connection with the administrator terminal based on the acquired connection information.