{
  "alcoa": [
    {
      "evidence": "actor=system:00-system",
      "label": "Attributable",
      "pillar": "attributable",
      "satisfied": true
    },
    {
      "evidence": "payload is structured JSON (object/array)",
      "label": "Legible",
      "pillar": "legible",
      "satisfied": true
    },
    {
      "evidence": "occurred_at recorded; no created_at to cross-check",
      "label": "Contemporaneous",
      "pillar": "contemporaneous",
      "satisfied": true
    },
    {
      "evidence": "payload_hash=cc8f12…80f12",
      "label": "Original",
      "pillar": "original",
      "satisfied": true
    },
    {
      "evidence": "action=study-backfill subject=study:ONC-002",
      "label": "Accurate",
      "pillar": "accurate",
      "satisfied": true
    },
    {
      "evidence": "one of study_id / actor_id / subject_id is missing",
      "label": "Complete",
      "pillar": "complete",
      "satisfied": false
    },
    {
      "evidence": "occurred_at, created_at and id form a coherent record",
      "label": "Consistent",
      "pillar": "consistent",
      "satisfied": true
    },
    {
      "evidence": "stored in append-only cro.provenance_event (RLS deny-by-default)",
      "label": "Enduring",
      "pillar": "enduring",
      "satisfied": true
    },
    {
      "evidence": "dereferenceable at /provenance/29e18b2e-83b0-4cc8-a805-7f72fff39162",
      "label": "Available",
      "pillar": "available",
      "satisfied": true
    }
  ],
  "event": {
    "action": "study-backfill",
    "actor_id": "00-system",
    "actor_kind": "system",
    "id": "29e18b2e-83b0-4cc8-a805-7f72fff39162",
    "model_id": null,
    "model_provider": null,
    "model_version_id": null,
    "occurred_at": "2026-06-04T19:03:01.703429+00:00",
    "payload": {
      "code": "ONC-002",
      "source": "migration-0003-backfill"
    },
    "payload_hash": "cc8f12965cbfe9222a9b3b455fee9c8a299704260178982608588260f8e80f12",
    "retrieved_context": [],
    "reviewer_user_id": null,
    "row_hash": "cc8f12965cbfe9222a9b3b455fee9c8a299704260178982608588260f8e80f12",
    "signature_id": null,
    "study_id": null,
    "subject_id": "ONC-002",
    "subject_kind": "study"
  },
  "exportedAt": "2026-09-12T08:06:24.974Z",
  "links": {},
  "schemaVersion": "1"
}