{
  "@context": {
    "id": "@id",
    "type": "@type",
    "bc": "https://w3id.org/blockcerts#",
    "cp": "https://w3id.org/chainpoint#",
    "vc": "https://www.w3.org/2018/credentials/v1",
    "schema": "https://schema.org/",
    "sec": "https://w3id.org/security#",
    "xsd": "http://www.w3.org/2001/XMLSchema#",

    "MerkleProof2019": "sec:MerkleProof2019",

    "BlockcertsCredential": "bc:BlockcertsCredential",
    "introductionUrl": { "@id": "bc:introductionUrl", "@type": "@id" },
    "metadata": "bc:metadata",
    "display": {
      "@id": "bc:display",
      "@context": {
        "id": "@id",
        "type": "@type",
        "contentMediaType": {"@id": "bc:contentMediaType", "@type": "@id"},
        "contentEncoding": {"@id": "bc:contentEncoding", "@type": "@id"},
        "content": {"@id": "bc:content", "@type": "@id"}
      }
    },

    "CryptographicKey": "sec:Key",

    "domain": "sec:domain",
    "nonce": "sec:nonce",
    "proofValue": "sec:proofValue",
    "assertionMethod": {"@id": "sec:assertionMethod", "@type": "@id", "@container": "@set"},
    "authentication": {"@id": "sec:authenticationMethod", "@type": "@id", "@container": "@set"},
    "proofPurpose": {"@id": "sec:proofPurpose", "@type": "@vocab"},
    "verificationMethod": {"@id": "sec:verificationMethod", "@type": "@id"},
    "created": {"@id": "https://purl.org/dc/terms/created", "@type": "xsd:dateTime"},
    "challenge": "sec:challenge",
    "expires": {"@id": "sec:expiration", "@type": "xsd:dateTime"},

    "name": {
      "@id": "schema:name"
    }
  }
}