Full example DigSig Data Descriptor (DDD)

{
  "datafields": [
    {
      "fieldid": "specificationversion"
    },
    {
      "fieldid": "dauri"
    },
    {
      "fieldid": "daid"
    },
    {
      "fieldid": "cid"
    },
    {
      "enumvalues": [
        "brown",
        "blue",
        "gold",
        "gray",
        "green",
        "orange",
        "pink",
        "purple",
        "red",
        "silver",
        "white",
        "yellow"
      ],
      "fieldid": "colour",
      "type": "enum"
    },
    {
      "enumvalues": [
        "VAN",
        "COUPE",
        "PICKUP",
        "SALOON",
        "S.WAGON",
        "LORRY/TRUCK",
        "MOTOR CYCLES"
      ],
      "fieldid": "form_factor",
      "type": "enum"
    },
    {
      "fieldid": "expiry_date",
      "type": "date"
    },
    {
      "fieldid": "usermem",
      "type": "struct",
      "pragma": {
        "readmethod": {
          "methodname": "ISO/IEC 18000-63",
          "methoddesc": {
            "en": "User memory bank"
          },
          "methodmemory": [
            3
          ],
          "methodoffset": 0,
          "methodlength": 595
        }
      },
      "fields": [
        {
          "fieldid": "signature",
          "type": "bstring",
          "binaryformat": "{256}"
        },
        {
          "fieldid": "timestamp"
        },
        {
          "fieldid": "license_plate",
          "type": "string",
          "range": "[A-Z0-9]",
          "binaryformat": "{1,8}"
        },
        {
          "fieldid": "vin",
          "range": "[A-Z0-9]",
          "type": "string"
        }
      ]
    },
    {
      "fieldid": "tid",
      "fieldname": {
        "en": "Tag ID"
      },
      "type": "bstring",
      "binaryformat": "{96}",
      "pragma": {
        "readmethod": {
          "methodname": "ISO/IEC 18000-63",
          "methoddesc": {
            "en": "Plate serialisation (TagID), memory bank 2."
          },
          "methodmemory": [
            2
          ],
          "methodoffset": 0,
          "methodlength": 96
        }
      }
    }
  ],
  "digsiginfo": {
    "cid": 811,
    "daid": "QC TRUE",
    "dauri": "https://dauri1.20248.info",
    "revocationuri": "https://dauri1.20248.info/revoke",
    "specificationversion": "ISO/IEC 20248:2018",
    "verificationuri": "https://v1.20248.info"
  }
}