{
  "schemaVersion": 1,
  "kind": "first-party-single-city-date-comparison",
  "observedAt": "2026-09-23T01:04:00.000Z",
  "scope": "One synthetic date and public city coordinate. The reference is a separately published calendar, not an independent audit of all dates, methods, transitions or interpretations. This receipt does not establish forecasting accuracy.",
  "input": {
    "date": "2026-09-22",
    "latitude": 40.7128,
    "longitude": -74.006,
    "timeZone": "America/New_York"
  },
  "calculation": {
    "sunriseModel": "astronomy-engine",
    "positionSource": "Swiss Ephemeris (@swisseph/node)",
    "ayanamsa": "lahiri",
    "nodeMode": "mean",
    "positionSampleUtc": "2026-09-22T10:44:00.000Z",
    "sunSiderealLongitude": 155.222906,
    "moonSiderealLongitude": 284.635651
  },
  "reference": {
    "source": "Drik Panchang",
    "url": "https://www.drikpanchang.com/panchang/day-panchang.html?geoname-id=5128581",
    "selectDate": "2026-09-22",
    "location": "New York City",
    "localTimes": {
      "sunrise": "06:44",
      "sunset": "18:53",
      "rahuStart": "15:50",
      "rahuEnd": "17:21"
    },
    "factorsAtSunrise": {
      "vara": "Mangalavara",
      "paksha": "shukla",
      "tithiDay": 11,
      "nakshatra": "Shravana",
      "yoga": "Atiganda",
      "karana": "Vishti"
    }
  },
  "openFate": {
    "sunriseUtc": "2026-09-22T10:43:38.519Z",
    "sunsetUtc": "2026-09-22T22:53:02.045Z",
    "rahuStartUtc": "2026-09-22T19:50:41.163Z",
    "rahuEndUtc": "2026-09-22T21:21:51.604Z",
    "factorsAtSunrise": {
      "vara": "Mangalavara",
      "paksha": "shukla",
      "tithiDay": 11,
      "nakshatra": "Shravana",
      "yoga": "Atiganda",
      "karana": "Vishti"
    }
  },
  "comparison": {
    "factorValuesMatch": true,
    "timeToleranceMinutes": 5,
    "allFourTimeValuesWithinTolerance": true
  }
}