Verification lineage tracking and transfer control of data sets
US10425428B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2017 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Aug 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Whenever users receive or transfer a copy of any of a set of documents, prior verification of the document is enforced by an administrative system, which associates verification metadata with the copy. As each copy is itself copied, possibly modified, and transferred, updated verification metadata is included with the previous verification metadata to form a verification lineage chain, which can later be examined to determine the circumstances of any verification failure. Documents are preferably verified by comparing the digital signature of the current copy with the signature of a reference copy. Documents may be signed by submitting them as transactions to a blockchain, with the blockchain receipt comprising the digital signature of the respective document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.