{
  "demo_surface": "workflow",
  "fleet_id": "workflow-evidence-loop-demo",
  "artifact_id": "provenance_chain",
  "generated_at": "2026-06-12T12:00:00.000Z",
  "synthetic": true,
  "chain": [
    {
      "object": "input_packet",
      "sha256": "synthetic-input-packet-sha"
    },
    {
      "object": "model_output",
      "sha256": "synthetic-output-sha"
    },
    {
      "object": "review_note",
      "sha256": "synthetic-review-sha"
    }
  ],
  "provenance_policy": "all derived objects must point to a parent hash"
}