{
  "schema": "panda_fine_contract_history_v1",
  "generated_at": "2026-09-10T20:19:53",
  "range": {
    "start": "2023-09-10 00:00:00",
    "end": "2026-09-09 22:29:00"
  },
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  ],
  "provider": "TqSdk TqBacktest exact-contract 1m",
  "mapping_source": "D:\\Panda Auto\\roll_calendar_cleaning\\outputs\\tq_main_contract_rolls.csv",
  "daily_mapping_source": "D:\\Panda Auto\\roll_calendar_cleaning\\outputs\\tq_main_contract_daily.csv",
  "pre_delivery_months": 18,
  "chunk_days": 35,
  "contracts": 111,
  "rolls": 103,
  "verified_rolls": 103,
  "main_rows": 1985214,
  "exact_contract_rows": 7945994,
  "coverage_complete": 103,
  "coverage_check": 0,
  "download_jobs": 1517,
  "download_failed_jobs": 0,
  "excel_index_written": false
}