Metadata Tagging and Policy Expression: Demonstrate the use of blockchain for security metadata and tagging to manage access, provide auditing and provenance information.
By doing the above the following is being demonstrated:
- The storage of metadata (ownership, access rights, security credentials) for medical records
- Validation is happening via the metadata at the time of access - grants
- For audit purpose there is clear trail of when all the particular report was accessed and who all asked for it
- For provenance, the origination of the report (lab and prescribing physician is tagged to the metadata)