credentialIssuer
OID4VCI: REQUIRED. The Credential Issuer's identifier, by a case sensitive URL using the https scheme that contains scheme, host and, optionally, port number and path components, but no query or fragment components
OID4VCI: REQUIRED. The Credential Issuer's identifier, by a case sensitive URL using the https scheme that contains scheme, host and, optionally, port number and path components, but no query or fragment components