{
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        "upstream_us_sites": 77,
        "rendered_us_campus_points": 76,
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        "country_filter": "Country == United States in both map facts and exact-name CSV join",
        "location_gate": "Source lngLat and campus bounds must be valid, and source Building Polygon/MultiPolygon/LineString annotations must exist. No geocoding, country/state/city centroids or inferred connection points.",
        "geometry_source_date": null,
        "geometry_date_note": "The source does not publish a separate observation date for its campus anchor geometries; retrieved_at is the fetch date.",
        "limitations": [
          "Partial coverage of frontier AI data centers; not a census of all US data centers.",
          "Power is an Epoch AI estimate of IT capacity, not electricity headroom or a contracted utility supply.",
          "Construction observations and projections do not establish a utility interconnection timetable.",
          "Coordinates are campus anchors from source annotations, not surveyed cadastral coordinates."
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        "refresh_command": "python3 scripts/refresh_epoch.py"
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  "limitations": [
    "Map is a visual excerpt of source data, not a complete national electrical inventory.",
    "Generalized and tile-clipped lines do not constitute validated electrical topology.",
    "Campus points do not represent confirmed points of interconnection.",
    "No available electrical capacity, saturation or connection date is inferred.",
    "Halos are decorative emphasis, not measured spatial extents.",
    "Retrieval dates are not electrical validity dates."
  ]
}