Patent ID: 11960503
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A data management system, comprising:
a plurality of authentication servers each having a distributed ledger; and
a device, wherein
a first authentication server included in the plurality of authentication servers includes:
an obtainer that obtains first transaction data generated by the device, the first transaction data including device data obtained or generated by the device;
a transaction data verifier that verifies the first transaction data when the device data included in the first transaction data is first data indicated in an information type list which is a data list indicating data that is subject to recording in the distributed ledger and related to a predetermined contract; and
a synchronizer that generates a block including the first transaction data and records, in the distributed ledger, the block generated;

the predetermined contract is a contract related to electric power or a contract related to linkage between IoT devices; and
the device data is data related to electric power or data related to linkage between IoT devices.