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{
  "schema_version": "datapan.diagnostic-envelope.v1",
  "assessed_at": "2026-07-16T00:40:00Z",
  "fixture": {
    "status": "deterministic_example",
    "scenario_id": "stale-data",
    "snapshot_at": "2026-07-16T00:40:00Z"
  },
  "subject": {
    "source_id": "data_go_kr",
    "dataset_id": "fixture-dataset-stale",
    "operation_id": "fixture-operation-stale",
    "provider_id": "data_go_kr"
  },
  "cause": {
    "code": "stale_data",
    "determination": "observed",
    "layer": "data_quality",
    "explanation_id": "diagnosis.stale_data"
  },
  "ownership": {
    "accountable_party": "provider"
  },
  "actions": {
    "recommended": [
      {
        "action_id": "inspect_data_quality",
        "actor": "user",
        "rationale_id": "action.inspect_reference_date"
      }
    ],
    "avoid": [
      {
        "action_id": "treat_transport_success_as_data_success",
        "actor": "user",
        "rationale_id": "avoid.http-200_does_not_prove_freshness"
      }
    ]
  },
  "evidence_refs": [
    {
      "kind": "data_quality_assertion",
      "ref_id": "quality:fixture-operation-stale:freshness",
      "authority": "consumer_validation",
      "scope": {
        "level": "data_quality",
        "subject_ref": "envelope_subject",
        "detail_id": "fixture-operation-stale:reference-time"
      },
      "version": "freshness-assertion-v1",
      "quality_assertion": {
        "kind": "freshness",
        "result": "failed",
        "policy_version": "freshness-assertion-v1"
      },
      "freshness": {
        "policy_version": "daily-update-v1",
        "reference_time": "2026-07-16T00:40:00Z",
        "actual_time": "2026-07-13T00:00:00Z",
        "maximum_age_seconds": 86400,
        "state": "stale"
      },
      "supports": [
        "cause",
        "determination",
        "ownership",
        "action"
      ],
      "timing": {
        "basis": "relative_to_assessed_at",
        "observed_age_seconds": 0,
        "validity": "current_at_assessment",
        "validity_policy_version": "freshness-assertion-v1",
        "remaining_validity_seconds": 3600
      }
    }
  ],
  "redaction": {
    "secret_values_present": false,
    "secret_hashes_present": false,
    "authorization_headers_present": false,
    "credential_bearing_urls_present": false,
    "raw_provider_text_present": false,
    "raw_provider_urls_present": false,
    "response_bodies_present": false,
    "user_identity_present": false
  }
}