{
  "verified_chain": [
    "S1",
    "S2",
    "S3",
    "S4"
  ],
  "missing_predecessor_negative_rejected": true,
  "current_author_status": "B方案待成本核验",
  "summary_model_executed": false,
  "source_episodes_retained": true,
  "evidence_kind": "author input/reference computation, not a target product or model run",
  "paid_or_network_model_calls": 0
}
