{
  "schema_version": 1,
  "generated_at_utc": "2026-05-16T09:06:51Z",
  "source_registry": "Data/Tiles/ground_zero_tiles.json",
  "generation_rule": "Every source-backed/generated tile with center coordinates is emitted; unknown placeholders are skipped.",
  "tiles": [
    {
      "tile_id": "gz_us_ca_pacifica_utm10n_e544_n4160",
      "center_latitude": 37.5925,
      "center_longitude": -122.4995,
      "coordinate_source": "tile_center",
      "provider": "open-meteo",
      "fallback_provider": "noaa-nws",
      "fallback_provider_eligible": true,
      "lookup_rule": "Use the Ground Zero tile center latitude/longitude for live MVP weather and temperature snapshots."
    }
  ]
}