Method and system for secure digital documentation of subjects using hash chains
US11003653B2 · kind B2 · utility
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16Claims
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Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Oct 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for documenting subjects using hash chains. The method includes receiving a subject data write request including one or more subject attribute values, generating a fingerprint from a current last block of a hash chain, and generating a payload from the subject data, the payload including the one or more subject attribute values and one or more keys identifying the one or more subject attribute values. The method further includes appending a block to the hash chain. The appended block includes the payload and the fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.