High precision timestamps in blockchain
US10764070B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Jan 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An example operation may include one or more of receiving, by a document server, a hash of data generated by an author registered with a blockchain, sending, by the document server, the hash of the data to a timestamp authority (TSA) to be time stamped, receiving, by the document server, a timestamp reflecting when the hash of the data was received by the TSA and forwarding the timestamp to the author, receiving a combination of the hash of the data and the timestamp (time/hash) signed by the author and forwarding the time/hash to the blockchain, receiving, by the document server, the time/hash signed by the TSA, and forwarding the time/hash signed by the TSA to the blockchain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.