Distributed ledger management method, distributed ledger system, and node
US11621850B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Nov 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/463
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A distributed ledger management method performed by each of nodes 211 configuring a distributed ledger system, includes: holding, in an end block 102, signatures of respective organizations operating the respective nodes, hash values of respective groups of blocks into which a blockchain 215 is divided by a number of the operating organizations, information on organizations by which the group of blocks is to be held, and a verification frequency for the hash value between the organizations; specifying a group of blocks to be held by the organization; deleting a block other than the group of blocks in the blockchain 215; and performing a tamper verification of requesting a node 211 of another organization to transmit the hash value of the group of blocks to be held by the other organization at a verification frequency, and collating the hash value with the hash value included in the end block 102.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.