solution designs

Examples from HELIX’s own docs. These generated pages come from docs/helix/. Use them to see the method in practice; start with the artifact-type catalog for reusable templates.

Solution Design: SD-002 — First-Class Principles

Innsigle seal: model-primary by HELIX

The signature covers the markdown source of this page, not these HTML bytes. This page quotes that seal; verify it against the source file.

Composition: model-primary
Issuer: HELIX helix
Signing key: ed25519:b0865d76d834a52c48506414d16f4e5a (build key)
Signed source: artifacts/solution-designs/_index.md
Signed: 2026-09-23T14:11:58Z
Content digest: sha256:9837e909…600f07c9

This build key is endorsed by the human key for build signing; the signature is not a detector and not a truth guarantee.

Raw attestation JSON

{
  "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/artifacts/solution-designs/_index/",
        "digest": {
          "alg": "sha256",
          "value": "9837e9091a82622f3aa82f4337eb58ee0224d0f450b3f790150e834e600f07c9"
        }
      }
    ],
    "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": "rIXGCIIAqZfk9oEhrIwslON_nu-U9ETosYi41nI9_Iw1LbaAbjJh0rT5fwO5I-GrvIUSuVTS94Ck2hfIuieuBQ",
      "signed_at": "2026-09-23T14:11:58Z"
    }
  ]
}

attestation file · issuer keys