vpToken

OID4VP: REQUIRED. JSON String or JSON object that MUST contain a single Verifiable Presentation or an array of JSON Strings and JSON objects each of them containing a Verifiable Presentations. Each Verifiable Presentation MUST be represented as a JSON string (that is a Base64url encoded value) or a JSON object depending on a format as defined in Annex E of OpenID.VCI. When a single Verifiable Presentation is returned, the array syntax MUST NOT be used. If Appendix E of OpenID.VCI defines a rule for encoding the respective Credential format in the Credential Response, this rules MUST also be followed when encoding Credentials of this format in the vp_token response parameter. Otherwise, this specification does not require any additional encoding when a Credential format is already represented as a JSON object or a JSON string.