Igrantio Credential Schema Sca Payment Card

Payment Card Credential (TS12) - credential schema

When to use

Use this skill when you issue or verify a Payment Card Credential (TS12). The credential states the payment card of the holder. It is one of the three SCA payment credentials in the registry, together with the payment account credential and the payment user credential.

The metadata sets isScaCredential to true. The schema supports one format: SD-JWT VC (dc+sd-jwt).

The registry keeps this schema under credentialSchemas/claimPathPointer/scaPaymentCard. Version 2025.7.1 is the latest version directory, and this skill uses it. The registry publishes the schema in one format: dc+sd-jwt.

What the claims describe

The registry defines three claims. All three are mandatory, and all three set limitDisclosure to true, so the holder can disclose each one on its own.

• pan_last_four - the last four digits of the primary account number. The schema does not hold the full card number, so the credential shows the card without the data that a payment needs.
• scheme - the card scheme.
• scheme_logo - the logo of the card scheme, for the card view in the wallet.

Never put the full primary account number in this credential. The schema gives pan_last_four for identification only.

Claim path pointer documents

Each document below is the file that the registry holds. Copy it without a change.

SD-JWT VC (dc+sd-jwt)

The credentialType holds the placeholder {baseUrl}. Replace {baseUrl} with the base URL of the service that publishes the VCT metadata before you send the value in the vct field. The registry keeps the placeholder so that the same schema works for each deployment.

{
  "claims": [
    {
      "path": [
        "pan_last_four"
      ],
      "mandatory": true,
      "limitDisclosure": true
    },
    {
      "path": [
        "scheme"
      ],
      "mandatory": true,
      "limitDisclosure": true
    },
    {
      "path": [
        "scheme_logo"
      ],
      "mandatory": true,
      "limitDisclosure": true
    }
  ]
}

How to read a claim path pointer

A claim path pointer selects one claim in the credential. Each item of the claims array holds these fields.

• path is mandatory and holds at least one element. Read the elements from left to right. A string element selects an object key. An integer element selects one array index. A null element selects every element of an array, so ["nationalities", null] covers each entry of the nationalities array.
• mandatory says whether the issuer must supply a value for the claim. The issuer reads a missing mandatory field as true.
• limitDisclosure says that the holder can disclose the claim on its own. Set it only inside the claims object of a dc+sd-jwt or mso_mdoc configuration. The jwt_vc_json format has no selective disclosure, so its documents leave the field out.

A path that names a parent object, such as ["address"], and a path that names a child, such as ["address", "country"], can both appear. The parent pointer lets the holder disclose the full object. The child pointers let the holder disclose one field at a time.

For mso_mdoc, the first element of the path is the mDoc namespace, every path holds at least two elements, and every path of one configuration uses the same first element.

For jwt_vc_json, the first element of the path is always credentialSubject.

Use with the iGrant.io API

Create a credential definition with POST /v2/config/digital-wallet/openid/sdjwt/credential-definition. Put the claims array of the registry document into the configuration entry, and set vct to the credential type with {baseUrl} replaced.

{
  "label": "Issue Payment Card",
  "version": "version_01",
  "credentialDefinitions": [
    {
      "credentialFormat": "dc+sd-jwt",
      "vct": "{baseUrl}/service/vct-metadata/card",
      "validationPath": "$",
      "claims": {
        "claims": [
          {
            "path": [
              "pan_last_four"
            ],
            "mandatory": true,
            "limitDisclosure": true
          },
          {
            "path": [
              "scheme"
            ],
            "mandatory": true,
            "limitDisclosure": true
          }
        ]
      }
    }
  ]
}

The label Payment Card Credential is reserved for the platform. Pick another label, for example Issue Payment Card.

Notes on the request.

• label must hold at least 3 characters. The platform reserves the labels Payment User Credential, Payment Card Credential, Payment Account Credential, PID Issuance and Photo ID Issuance, so pick another label.
• Always send version with the value version_01. The issuer falls back to an earlier version of the specification when you leave the field out, and you cannot change the value after you create the credential definition.
• Add one entry of credentialDefinitions[] for each format that you want to publish. You can publish more than one format from one credential definition.
• Keep the id that the response returns for each entry. The issue operation uses that value to match the claims to a configuration.
• Add supportRevocation, revocationMethod, expirationInDays, display and the other entry fields as your use case needs them.

Read igrantio-api-issuer for the full operation reference, the other request fields, and the issue operation that follows.

Source is the registry

The verifiable data registry is the source of truth. If this skill and the registry file disagree, the registry wins. Fetch the source before you rely on a claim path, and report the difference so this skill can be corrected.

• Template directory: https://github.com/decentralised-dataexchange/verifiable-data-registry/tree/main/credentialSchemas/claimPathPointer/scaPaymentCard
• Raw dc+sd-jwt document: https://raw.githubusercontent.com/decentralised-dataexchange/verifiable-data-registry/main/credentialSchemas/claimPathPointer/scaPaymentCard/2025.7.1/dc+sd-jwt.schema.json
• The metadata file sits next to each schema file, with the suffix .schema.metadata.json. It carries the title, the credential type, the doctype and the format flags.

Cross-references

• igrantio-credential-schema-sca-payment-account - the payment account credential.
• igrantio-credential-schema-sca-payment-user - the payment user credential.
• igrantio-api-issuer - the create credential definition and issue credential operations, and the transaction data validation operation.
• igrantio-api-verifier - the DCQL query that asks a holder for the credential.
• igrantio-ows-overview - architecture and glossary.