{
  "mnq_sha256": "ecd46b136825e0b329c6956ece1420f764d1225f8cce460f7c42cc4f01329890",
  "databento_mes_sha256": "4d9e20a35bff680eee08581a51ee2cc123b9b5b063314b677e6f13a0259d648b",
  "pair_period_start": "2025-01-01",
  "pair_period_end": "2026-09-25",
  "databento_pair_bars": 121858,
  "databento_alignment": {
    "left": "MNQ",
    "right": "MES",
    "overlap_start_utc": "2025-01-01T23:00:00+00:00",
    "overlap_end_utc": "2026-09-25T20:55:00+00:00",
    "left_only": 719,
    "right_only": 252,
    "both": 121858,
    "missing_ratio": 0.007905299237150836,
    "timestamp_mismatch": 971,
    "alignment_policy": "exact timestamp inner join; no forward fill"
  },
  "source_note": "Databento MES is used consistently in both periods; TradingView MES begins in 2026"
}