Method, apparatus and electronic device for blockchain-based asset issuance
US11226952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A node device in a blockchain receives an asset issuance transaction from an asset issuer, where the asset issuance transaction comprises a commitment value and a proof for performing a zero-knowledge proof with respect to the commitment value, and where the commitment value is calculated by inputting at least an asset type of a target asset object issued by the asset issuer to a commitment function. The zero-knowledge proof with respect to the commitment value based on the proof is initiated. It is determined that the asset type of the target asset object is in a set of legal asset types allowed to be issued by the asset issuer. In response to determining that the asset type of the target asset object is in the set of legal asset types allowed to be issued by the asset issuer, the commitment value to the blockchain is issued for storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.