System and method for verifying the no-later-than date-of-existence, data integrity, identity of the recorder, and timestamp of the recording for digital content
US11394538B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Mar 21, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3263
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for recording and verifying the data integrity, identity of the recorder, and no-later-than date-of-existence for digital content of an arbitrary size is provided. The provided system and method employ blockchain technology to ensure immutability and accessibility of digital content state, digital content recorder identity, and timestamp of recording for the recorded digital content. The provided system and method also generate meta-data files associated with the recorded digital content that consist of a manifest file, a signature file, and a signature block file. The meta-data files are included into the digital content in order to facilitate the verification of the digital content against the records held in the blockchain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.