Guarantee of ledger immutability
US10833845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | May 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An example operation may include one or more of connecting, by an attester node, to a blockchain network A configured to store hashes of blocks A, coupling, by the attester node, the blockchain network A with a blockchain network B configured to store hashes of blocks B, receiving, by the attester node, a request from the blockchain network A to send a hash of a block A produced at a time t1 (AHash_1) to the blockchain network B, confirming, by the attester node, that the blockchain network A has stored a hash of a block B produced at a time t0 (BHash_0), sending, by the attester node, the AHash_1 to the blockchain network B to be stored, receiving, by the attester node, a hash of the block B produced at the time t1 (BHash_1) from the blockchain network B, confirming, by the attester node, that the blockchain network B has stored a hash of a block A produced at the time t0 (AHash_0), and providing, by the attester node, the BHash_1 to the blockchain network A to be stored, wherein the t0 is less than the t1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.