{
  "payload": {
    "innsigle": "1",
    "type": "https://innsigle.dev/claim/colophon/v1",
    "issued_at": "2026-09-23T14:11:58Z",
    "issuer": {
      "id": "helix",
      "name": "HELIX",
      "key_id": "ed25519:b0865d76d834a52c48506414d16f4e5a",
      "key_url": "https://documentdrivendx.github.io/helix/.well-known/innsigle/keys.json"
    },
    "subjects": [
      {
        "uri": "https://documentdrivendx.github.io/helix/artifact-types/iterate/metric-definition/",
        "digest": {
          "alg": "sha256",
          "value": "5406731f52e4f7688c7e3e55f63b0159b7faed28e16dac1369303d3ab03d5ba9"
        }
      }
    ],
    "colophon": {
      "schema_version": "1",
      "composition": "model-primary",
      "ingredients": [
        {
          "kind": "model",
          "name": "Claude",
          "role": "draft"
        },
        {
          "kind": "tool",
          "name": "sloptimizer",
          "role": "rewrite"
        },
        {
          "kind": "human",
          "name": "operator",
          "role": "structure-edit"
        }
      ],
      "notes": null
    }
  },
  "payload_encoding": "json",
  "signatures": [
    {
      "key_id": "ed25519:b0865d76d834a52c48506414d16f4e5a",
      "alg": "ed25519",
      "sig": "P8DT_MO7LqcG8eSIDiEn6y2QNV2nyGAPw8kEfIjpXghgQJ0KsQL5UTzgu9fDYrb95mIBkpxYX7q0k6CqfjWLCw",
      "signed_at": "2026-09-23T14:11:58Z"
    }
  ]
}