Patent ID: 11971929
Assignee: WACOM CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The method of claim 10, comprising:
creating a record including an original document and a modification to the original document;
generating metadata associated with the modification to the original document;
storing the modification in a data store;
requesting creation and registration of a decentralized identifier (DID) document for the modification based on the generated metadata;
generating modified document metadata including a document hash and the created DID document for the modification;
requesting recordation of the modification in a blockchain transaction, creation and registration of a DID document for the modified document, and generation of verifiable credentials for the modification;
storing the generated verifiable credentials for the modification;
generating a quick response (QR) code for the DID document for the modification; and
adding a visual representation of the modification and the QR code for the modification to the original document, generating a sealed document.