http://specification.openbadges.org/credentials/#DefinedAchievementAssertion

DefinedAchievementAssertion.jsonld

{
  "@context": "https://w3id.org/credentials/v1",
  "id": "https://example.com/identities/bob",
  "type": ["Identity", "Person"],
  "name": "Bob Bobman",
  "birthdate": "1985-12-14",
  "email": "bbob@example.com",
  "badge": ["https://bigunivertsity.edu/credentials/BA"],
  "credential": [{
    "id": "http://biguniversity.gov/credentials/53091",
    "type": "UniversityDegree",
    "claim": {
      "id": "https://example.com/identities/bob",
      "name": "Bob Bobman",
      "birthdate": "1985-12-14",
      "badgeAssertion": [
        {
          "id": "https://biguniversity.edu/credentials/53091/badge",
          "type": "Assertion",
          "recipient": {
            "identity": "bbob@example.com",
            "type": "email",
            "hashed": false
          },
          "issueDate": "2015-03-01",
          "badge": {
            "id": "https://bigunivertsity.edu/credentials/BA",
            "type": "BadgeClass",
            "name": "Bachelor of Arts",
            "description": "The gold standard of credentials in liberal arts education",
            "image": "https://biguniversity.edu/credentials/BA/image",
            "criteria": "https://biguniversity.edu/credentials/BA/criteria",
            "issuer": {
              "id": "https://biguniversity.edu/id",
              "type": ["BadgeIssuer", "Identity"],
              "name": "Big University",
              "url": "http://biguniversity.edu",
              "publicKey": "https://biguniversity.edu/keys/1"
            }
          }
        }
      ]
    },
    "expires": "2018-01-01",
    "signature": {
       "type": "GraphSignature2012",
       "creator": "https://biguniversity.edu/keys/1",
       "signature": "3780eyfh3q0fhhfiq3q9f8ahsidfhf29rhaish"
    }
  }]
}