{
  "subject": "ingress-sun-cancer-2026-06-21",
  "claims": [
    {
      "id": "title",
      "proposition": {
        "predicate": "title",
        "object": "Sun enters Cancer at 2026-06-21T08:20:37Z"
      },
      "time": {
        "asserted": "2026-06-12T01:04:51.710Z",
        "valid": "2026-06-21T08:20:37Z"
      },
      "force": "computes",
      "provenance": {
        "witness": "astrology-topology ephemeris",
        "method": "meeus-truncated-series + jpl-approximate-elements (zero-dependency)",
        "accuracy": "Sun ≤0.02°; Moon ≤0.02°; planets a few arcminutes typical (JPL worst cases: Jupiter ~0.11°, Saturn ~0.17°) within 1800–2050. Lunar event times ~3 minutes; slow-planet events ~hours."
      },
      "status": "supported"
    },
    {
      "id": "occurs-at",
      "proposition": {
        "predicate": "occurs-at",
        "object": "2026-06-21T08:20:37Z"
      },
      "time": {
        "asserted": "2026-06-12T01:04:51.710Z",
        "valid": "2026-06-21T08:20:37Z"
      },
      "force": "computes",
      "provenance": {
        "witness": "astrology-topology ephemeris",
        "method": "meeus-truncated-series + jpl-approximate-elements (zero-dependency)",
        "accuracy": "Sun ≤0.02°; Moon ≤0.02°; planets a few arcminutes typical (JPL worst cases: Jupiter ~0.11°, Saturn ~0.17°) within 1800–2050. Lunar event times ~3 minutes; slow-planet events ~hours."
      },
      "status": "supported"
    }
  ]
}