Add proof to verifiable presentation

A Verifiable Presentation contains one or more Verifiable Credentials.

The endpoint will accept а Verifiable Presentation and will add a proof to it.

Example request:

POST /v1/presentation/proof

{
  "@context": [
    "https://www.w3.org/2018/credentials/v1",
  ],
  "id": "ocm-123",
  "type": "VerifiablePresentation",
  "verifiableCredential": [
    {
      "@context": [
        "https://www.w3.org/2018/credentials/v1",
        "https://www.w3.org/2018/credentials/examples/v1"
      ],
      "credentialSubject": {
        "allow": true,
        "id": "example/example/1.0",
        "taskID": "0123456789abcdef"
      },
      "issuanceDate": "2022-06-06T15:34:15.453690805Z",
      "issuer": "ocm-123",
      "type": "VerifiableCredential"
    },
    {
      "@context": [
        "https://www.w3.org/2018/credentials/v1",
        "https://www.w3.org/2018/credentials/examples/v1"
      ],
      "credentialSubject": {
        "id": "example/example/2.0",
        "result": {
          "hello": "world"
        }
      },
      "issuanceDate": "2022-06-06T15:34:15.453694805Z",
      "issuer": "ocm-123",
      "type": "VerifiableCredential"
    }
  ]
}

Example response:

{
  "@context": [
    "https://www.w3.org/2018/credentials/v1",
  ],
  "id": "ocm-123",
  "type": "VerifiablePresentation",
  "verifiableCredential": [
    {
      "@context": [
        "https://www.w3.org/2018/credentials/v1",
        "https://www.w3.org/2018/credentials/examples/v1"
      ],
      "credentialSubject": {
        "allow": true,
        "id": "example/example/1.0",
        "taskID": "0123456789abcdef"
      },
      "issuanceDate": "2022-06-06T15:34:15.453690805Z",
      "issuer": "ocm-123",
      "type": "VerifiableCredential"
    },
    {
      "@context": [
        "https://www.w3.org/2018/credentials/v1",
        "https://www.w3.org/2018/credentials/examples/v1"
      ],
      "credentialSubject": {
        "id": "example/example/2.0",
        "result": {
          "hello": "world"
        }
      },
      "issuanceDate": "2022-06-06T15:34:15.453694805Z",
      "issuer": "ocm-123",
      "type": "VerifiableCredential"
    }
  ],
  "proof": {
    "created": "2022-06-06T15:34:15.45427818Z",
    "proofPurpose": "assertionMethod",
    "proofValue": "dmF1bHQ6djE6RWlJTHRtNUF5QVNFeWw5VGc1Ri90LzJFbWFTUkhZM1JtakZSUU01VXltYy9NSHBTQkU5K3NxUlUyaFBvK2diNGZtc1V0NllGemNYQ1hUbjZWVTFkQ1E9PQ",
    "type": "Ed25519Signature2018",
    "verificationMethod": "signkey1"
  }
}