{
  "schema_version": "1.0",
  "receipt_id": "receipt_readiness_0001",
  "classification": "synthetic_redacted_fixture",
  "attempt": 1,
  "attempted_at": "2026-09-23T14:04:01.000Z",
  "event": {
    "id": "event_readiness_published_0001",
    "type": "survey.published.v1",
    "occurred_at": "2026-09-23T14:04:00.000Z",
    "study_id": "study_readiness_0001",
    "survey_id": "survey_readiness_0001",
    "survey_revision": 1,
    "export_version": "readiness-survey.v1"
  },
  "request": {
    "method": "POST",
    "destination": "https://fixture.invalid/webhooks/research",
    "headers": {
      "content-type": "application/json",
      "x-pico-event-id": "event_readiness_published_0001",
      "x-pico-signature": "[REDACTED; NO CREDENTIAL MATERIAL]"
    }
  },
  "delivery": {
    "mode": "fixture_only",
    "http_status": 202,
    "status": "synthetic_acknowledgement",
    "latency_ms": 91
  },
  "verification": {
    "status": "not_performed",
    "reason": "This deterministic artifact does not call a connector, sign a request, or prove live delivery."
  }
}