Open Badges Spec v3 Spec with characteristics of Europass :-)

  {
    "@context": [
      "https://www.w3.org/2018/credentials/v1",
      "https://w3id.org/openbadges/v3"
      ],
      "type": [
        "VerifiableCredential",
        "Open Badge"
      ],
      "id": "https://website-that-supports-or-displays-the-badge.html",
      "title": "Degree Certificate in Robotics",
      "issuer": {
      },
      "issuanceDate": "2010-01-01T19:23:24Z",
      "credentialSubject": {
        "id": "did:example:learner",
        "claims": [{
            "achieved": {
              "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",
            },
            "resultDescriptions": [{
              "id": "urn:uuid:da72e42e-9f38-4c42-83ac-33f6cb9bb3b1",
              "name": "Mastery",
              "resultType": "PerformanceLevel",
            }],
            "evidence": {}
        },
          {
            "achieved": {
              "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",
            },
            "resultDescriptions": [{
              "id": "urn:uuid:da72e42e-9f38-4c42-83ac-33f6cb9bb3b1",
              "name": "Mastery",
              "resultType": "PerformanceLevel",
            }],
            "evidence": {}
      }
    ],
    "displayproperties": {
        "type": "text/html",
        "display": "<some html here /> OR https://linktoadocument"
    }  
    "proof": {}
    }