Event verification receipt system and methods
US10447480B2 · kind B2 · utility
6Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Aug 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Blockchain blocks are provided with either or both of two element types that enable later verification of block validity. One element type is identifiers, such as signatures, of trusted validators that approve entry of the block into the blockchain. Another element is a history hash tree that encodes data from not only the current block, but also at least one previous block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.