{
  "schemaVersion": "ziwei-independent-replay-v1",
  "observedAt": "2026-09-25",
  "scope": {
    "dateRange": {
      "start": "1900-01-31",
      "end": "2099-12-31"
    },
    "charts": 1096,
    "description": "800 seeded synthetic charts from 1900–2099 plus days 15 and 16 of every leap month under both leap-month policies (296 charts). The calendar is compared for every date in the range.",
    "seed": 20260925,
    "inputBoundary": "Charts start from a civil date and a two-hour branch index (子 = 0 … 亥 = 11) with True Solar Time and the late-zi day rule already applied; those steps are tested separately."
  },
  "comparedFields": [
    "life and body palace",
    "twelve palace names and stems",
    "five-element bureau",
    "命主 and 身主",
    "decade start ages",
    "14 major stars",
    "左輔 右弼 文昌 文曲 祿存 擎羊 陀羅 天魁 天鉞 地空 地劫",
    "birth-year transformations"
  ],
  "results": {
    "calendarDates": 73019,
    "calendarDifferingDays": 60,
    "engineMonths": 2473,
    "calendarDifferences": [
      {
        "engineMonthStart": "1906-04-24",
        "engineLabel": "1906-4",
        "replayDate": "1906-4-2",
        "newMoonMinutesFromLocalMidnight": 7.24,
        "era": "historical almanac (Beijing local mean time)"
      },
      {
        "engineMonthStart": "2097-08-07",
        "engineLabel": "2097-7",
        "replayDate": "2097-6-30",
        "newMoonMinutesFromLocalMidnight": 0.25,
        "era": "China Standard Time"
      }
    ],
    "charts": 1096,
    "leapMonthCharts": 296,
    "engineLunarTextMismatches": [],
    "ruleLayerMismatches": [],
    "endToEndIdentical": 1095,
    "endToEndDifferenceCount": 1,
    "unexplainedDifferences": [],
    "endToEndDifferences": [
      {
        "id": "random-0143",
        "solarDate": "1906-05-10",
        "explainedByCalendarDifference": true,
        "engineFingerprint": "life:未|body:卯|bureau:金四局|masters:破军/火星|palaces:子庚仆役74,丑辛迁移64,寅庚疾厄54,卯辛财帛44,辰壬子女34,巳癸夫妻24,午甲兄弟14,未乙命宫4,申丙父母114,酉丁福德104,戌戊田宅94,亥己官禄84|stars:七杀未,右弼未,地劫酉,地空丑,天同戌,天府丑,天机寅,天梁午,天相巳,天钺酉,天魁亥,太阳子,太阴寅,左辅未,巨门辰,廉贞未,擎羊午,文昌子,文曲寅,武曲亥,破军亥,禄存巳,紫微卯,贪狼卯,陀罗辰|mutagens:天同禄,天机权,廉贞忌,文昌科",
        "replayFingerprint": "life:未|body:卯|bureau:金四局|masters:破军/火星|palaces:子庚仆役74,丑辛迁移64,寅庚疾厄54,卯辛财帛44,辰壬子女34,巳癸夫妻24,午甲兄弟14,未乙命宫4,申丙父母114,酉丁福德104,戌戊田宅94,亥己官禄84|stars:七杀寅,右弼未,地劫酉,地空丑,天同卯,天府申,天机未,天梁丑,天相子,天钺酉,天魁亥,太阳巳,太阴酉,左辅未,巨门亥,廉贞子,擎羊午,文昌子,文曲寅,武曲辰,破军午,禄存巳,紫微申,贪狼戌,陀罗辰|mutagens:天同禄,天机权,廉贞忌,文昌科"
      }
    ]
  },
  "limitations": [
    "Both implementations follow the same declared school, transformation table and 命主/身主 rule; a shared rule choice is not independently validated.",
    "Star brightness, 火星/鈴星 and decorative minor stars are outside this replay.",
    "Before 1929 the engine follows the historical almanac, while the replay uses modern astronomy on Beijing local mean time; a new moon within minutes of midnight can fall on different civil days.",
    "True Solar Time and the late-zi day boundary are applied before these inputs and are not recomputed here."
  ],
  "title": "OpenFate Zi Wei Dou Shu chart verification summary",
  "publicationKind": "first-party-verification-summary",
  "claimBoundary": "OpenFate performed this comparison using a separately written implementation. This is a publisher-reported result, not independent certification, a public replay kit, or evidence of predictive accuracy. Full execution records and implementation remain private.",
  "receiptSha256": "935ba32072a429c5aef5202997985d35c0b2ed36654c08a82951c5695004d162"
}