{
  "schema": "sarah.program_evaluation_receipt.v1",
  "fixture": true,
  "source_kind": "synthetic",
  "private_production_data": false,
  "passed": true,
  "safety_passed": true,
  "privacy_passed": true,
  "cost_complete": true,
  "actual_cost_usd": 2.5,
  "evaluator_id": "sarah-memory-intent-evaluator",
  "evaluator_digest": "5555555555555555555555555555555555555555555555555555555555555555",
  "holdout_id": "sarah-memory-intent-holdout",
  "holdout_digest": "4444444444444444444444444444444444444444444444444444444444444444",
  "baseline_metrics": {"accuracy": 0.8, "false_write_proposal_rate": 0.0},
  "candidate_metrics": {"accuracy": 0.9, "false_write_proposal_rate": 0.0},
  "uncertainty": {"method": "bootstrap", "confidence": 0.95, "half_width": 0.03}
}