Revoking, Refreshing, and Credential Status

[kayaelle]

Suggest we discuss recommendations for handling credential status in edu.

This is available: https://w3c-ccg.github.io/vc-csl2017/

The data model references the issued VC, status info, and a proof method for the status

Do we want to adopt this? Do we want to make status info recommendations for use cases such as a revoked credential or an updated credential.

Example of an Open Badge as VC with a credential status:

 {
    "@context": [
      "https://www.w3.org/2018/credentials/v1",
      "https://w3id.org/openbadges/v3"
      ],
      "type": [
        "VerifiableCredential",
        "Open Badge"
      ],
      "id": "https://example.org/achievement/123",
      "issuer": {...},
      "issuanceDate": "2021-01-01T19:23:24Z",
      "credentialSubject": {
        "id": "did:example:learner",
        "hasAchievement": {
          "id": "https://example.org/achievements/123",
          "type": "BadgeClass",
          "achievementType": "Certificate",
          "name": "Robotic Drones Analysis",
          "description": "Learn to analyze and present the different types of robotic drones",
          "image": "https://example.org/drone-image.png",
          "creator": "did:example:issuer",
          "criteria": "https://example.org/robotics-drone-analysis.html",
        }
      },
      "credentialStatus": {
         "id": "https://example.org/achievements/status/24,
         "type": "CredentialStatusList2017"
      },
      "proof": {...}
    }

Example of status list retrieval:

{
  "id": "https://example.org/achievements/status/24"
  "description": "Status of example edu org credential."
  "verifiableCredential": [{
    "claim": {
      "id": "https://example.org/achievement/123",
      "currentStatus": "Revoked",
      "statusReason": "Disciplinary action"
    },
    "issuer": "https://example.org/",
    "issued": "2021-01-01T19:23:24Z",
    "proof": { ... }
  }, {
    "claim": {
      "id": "https://example.org/achievement/123",
      "currentStatus": "Updated",
      "updates": [{
         "description": ""description": "Learn to analyze different types of robotic drones"
      }],
    "issuer": "https://example.org",
    "issued": "2021-01-01T19:23:24Z",
    "proof": { ... }
  },
    // ... more status info here ...
  }],
  "proof": { ... }
}

[roverwolf]

This is also available: https://w3c-ccg.github.io/vc-status-list-2021/ (currently marked as experimental) Less details are available about the status, but is a much smaller payload for a large number of credentials.

[kayaelle]

Thanks, @roverwolf !

[kayaelle]

Changed title to include refreshing and revoking.