US 12,333,621 B2
Evidence management method, evidence management system, and node
Tatsuya Sato, Tokyo (JP); and Taku Shimosawa, Tokyo (JP)
Assigned to Hitachi, Ltd., Tokyo (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Sep. 13, 2022, as Appl. No. 17/944,078.
Claims priority of application No. 2022-007174 (JP), filed on Jan. 20, 2022.
Prior Publication US 2023/0229795 A1, Jul. 20, 2023
Int. Cl. G06Q 30/00 (2023.01); G06Q 50/26 (2012.01)
CPC G06Q 50/26 (2013.01) 11 Claims
OG exemplary drawing
 
1. An evidence management method carried out in a distributed ledger system including nodes of a plurality of organizations, wherein a smart contract of each of the plurality of organizations refers to information made open to public in a public area, the information being related to an evidence held in a private area of each of the plurality of organizations, and in response to a trigger event of the information's meeting a given condition, executes a process of making the evidence open to the public in the public area, the evidence being held in the private area of an organization to which the smart contract belongs,
wherein, in carrying out transparent and appropriate collection of evidences across the plurality of organizations, a result of the execution of the process is inputted to a processor to control, in a non-centralized manner, timing of making the evidence open to the public between the organizations.