{
  "version": 1,
  "scope": "All valid single-ETF date ranges for the preserved 7-ETF/FX subset. Independent arithmetic implementation, not independent market-data or personal tax verification.",
  "series_sha256": "c1626df03559bcd71e3a3564f0f9ab7cc96d51b29e9a707338fafc12d5d6b577",
  "source_sha256": "34d709809fe2197dfdd20c2e9439da06fc7f67b15f97574a25d7e7f6de574a84",
  "engine_sha256": "58bb8fdd92ea54a63d25a2b35bd3037e26735060589f4096dbc62b3261830c17",
  "audit_sha256": "122c2ede27a1aed8cd5266783172115481360409f017bcd1d4755ac33d5c182d",
  "ranges_by_ticker": {
    "VOO": 18721,
    "QQQ": 18721,
    "SCHD": 16290,
    "VTI": 18721,
    "VXUS": 17955,
    "BND": 18721,
    "GLD": 18721
  },
  "total_ranges": 127850,
  "monthly_curves": 42,
  "max_pre_difference_krw": 3.4321217468398277e-07,
  "max_mdd_difference_ratio": 5.121433065745996e-16,
  "tolerances": {
    "krw": 0.0001,
    "mdd_ratio": 1e-09
  },
  "method": "40-digit Decimal reciprocal-price prefix sums; no imported JS financial helpers",
  "sample": {
    "ticker": "VOO",
    "start": "2021-10",
    "end": "2026-09",
    "monthly": 300000,
    "pre": 29078097.776855484
  }
}