{
  "cutoff_exclusive": "2026-10-31T00:00:00+00:00",
  "raw_rows_before_cutoff": 20904,
  "included": 13082,
  "wins": 11911,
  "losses": 1171,
  "win_rate_pct": 91.05,
  "average_logged_price_cents": 91.5991,
  "difference_before_fees_percentage_points": -0.5503,
  "first_signal": "2026-03-24T16:57:26.445818+00:00",
  "last_signal": "2026-10-30T23:27:05.952318+00:00",
  "excluded_by_reason": {
    "price_capture_error": 61,
    "not_alerted": 4242,
    "price_unusable": 3518,
    "ungraded": 1
  },
  "input_rows_sha256": "60fe517a12649df973a0782f0aef9fde677375e871095dcc06fe5f627df46a23",
  "input_rows_sha256_definition": "sha256 of json.dumps(rows signaled before the cutoff, sort_keys=True, separators=(\",\", \":\")) from kalshi_window_lag_dataset.json",
  "definition": "Existing published BTC record: explicit exclusions, not-alerted rows and unusable prices excluded; legacy rows require p_dir >= 0.75; settled rows only.",
  "limitations": [
    "Logged quotes are not executed fills. Fees and slippage are not included in this comparison.",
    "The old March\u2013July analysis remains a separately dated sample. No proven profitable edge."
  ]
}