Method and system for blockchain-based gemstone ownership, identity, custody, supply-chain transfer, trading, and secure payments
US11250394B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Feb 14, 2018 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A method of issuing blockchain-based digital certificates associated with a gemstone comprising receiving from a user a plurality of gemstone records, each record of the plurality of gemstone records comprising a characteristic indicator associated with a gemstone, receiving from the user meta-information related to the plurality of gemstone records, applying a hashing function to each record of the plurality of gemstone records, generating a plurality of fingerprints, generating a hash tree from the plurality of fingerprints, the hash tree comprising a root hash, recording to a digital certificate gemstone smart contract deployed at a digital certificate gemstone smart contract address on a first blockchain network the root hash and the received meta-information, and signing the digital certificate gemstone smart contract with an issuer signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.