Verifiable record storage service
US10904264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2018 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Jul 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A record storage system maintains an interdependent series of hash values for records submitted to the record storage service by one or more clients. The record storage service generates a hash value for each record based at least in part on the content of the record and a hash value of one or more previous records. In some examples, the generated hash values are saved in an audit database by the clients. Clients may retain some, all, or none of the hash values based on the amount of auditing desired and the amount of storage space available in the audit database. The clients are able to verify the integrity of records submitted to the record storage system by retrieving the records from the system, recalculating the hash values of the records, and comparing the recalculated hash values to the hash values retained by the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.