DIVOC’s W3C-based digital certificate consists of three core components:
Credential metadata (schema version credential/certificate ID, etc).
Claim (vaccination event details).
Proof (issuer details, date of issue, time stamp, signature, etc).
The DIVOC digital certificate QR code includes the following data structure:
Credential metadata
Certificate context
Sets the context, which establishes the special terms.
Certificate identifier
Specifies the identifier for the credential.
Credential type
Declares what data to expect in the credential.
2. Claim
Credential subject
Assertion about the subjects of the credentials.
Event block
When the credential was issued.
Issuer details
The entity that issued the credential.
3. Proof
Signature type
Digital proof that makes the credential tamper-evident. Cryptographic signature suite that was used to generate the signature.
Date of signature
When the signature was created.
Digital signature value
Identifier of the public key
That can verify the signature.
To illustrate the data structure of DIVOC certificate outputs, a sample certificate payload is outlined below:
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