{
  "artifactId": "urn:missionweaveprotocol:artifact:implementation-patch",
  "contentHash": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "uri": "https://artifacts.acme.example/sha256/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "sizeBytes": 4096,
  "mediaType": "application/vnd.git.patch",
  "schemaUri": "urn:missionweaveprotocol:schema:opaque",
  "producer": {
    "agentId": "urn:missionweaveprotocol:agent:developer-one",
    "agentCardVersion": 3,
    "capabilities": [
      {
        "id": "acme.software.python-implementation",
        "version": "2.1.0"
      }
    ]
  },
  "missionId": "urn:missionweaveprotocol:mission:one",
  "groupId": "urn:missionweaveprotocol:group:mission-one",
  "workItemId": "urn:missionweaveprotocol:work-item:implementation",
  "sourceArtifactHashes": [
    "sha256:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
  ],
  "toolVersions": [
    {
      "name": "git",
      "version": "2.50.0"
    }
  ],
  "modelVersions": [
    {
      "provider": "acme",
      "model": "developer-model",
      "version": "2026-07-01"
    }
  ],
  "classification": "internal",
  "createdAt": "2026-07-15T03:00:00Z",
  "signature": {
    "algorithm": "Ed25519",
    "keyId": "urn:missionweaveprotocol:key:crypto-vector-developer-one",
    "createdAt": "2026-07-15T03:00:00Z",
    "value": "5PSjDiyBzmkoJ5g6PWS8zJqmQyDIAxgbC0jB2wjVg0JnVWVgQ1GDXA8qn1ujCH5oz8VuWtO77WN-eBZpYJ3qCA"
  }
}