{
  "schema_version": "1.1",
  "release_version": "1.25.0",
  "reviewed_date": "2026-08-11",
  "kind": "escalation_acknowledgement_receipts",
  "claim_status": "LOCAL_APPEND_ONLY_UNSIGNED_OPERATIONAL_ACKNOWLEDGEMENT",
  "canonical_human_page": "/machine-intelligence/",
  "escalation_digest_sha256": "d9bd036c66a09d41a35685cd8839666030f464518d0cbb4ca7950eb9a259d3a8",
  "required_bindings": [
    "queue_id",
    "queue_item_digest_sha256",
    "escalation_tier",
    "evaluated_on",
    "acknowledged_on",
    "acknowledgement_reason",
    "prior_acknowledgement_receipt_digest_sha256"
  ],
  "allowed_escalation_tiers": [
    "OVER_SLA_TIER_1",
    "OVER_SLA_TIER_2"
  ],
  "append_only_policy": {
    "rewrite_behavior": "FAIL_CLOSED",
    "backdating_behavior": "FAIL_CLOSED",
    "history_deletion_prohibited": true,
    "acknowledgement_requires_matching_escalation_record": true,
    "legal_effect_inference_allowed": false
  },
  "records": [],
  "head_acknowledgement_receipt_digest_sha256": null,
  "active_escalation_acknowledgements": 0,
  "truth_boundary": "No production acknowledgement exists because no production escalation exists. Acknowledgement remains operational evidence only and creates no authority or legal effect.",
  "acknowledgement_ledger_digest_sha256": "fcaafc79b939265815035fa44b8c2137ec5e197b2376119304707fea9c98367c",
  "api_surface": "escalation_acknowledgement_receipts"
}