{
  "version": "v0.4",
  "updated": "2026-06-21",
  "layer": "ww2_digitized_frontlines.geojson",
  "status": "preliminary_digitized_archival_geometry",
  "meaning": "Vector linework has been manually shaped against archival-map dates and item-level references, but source rasters have not yet been georeferenced with control points.",
  "not_yet_claimed": [
    "not final cartographic precision",
    "not unit-level boundary tracing",
    "not a legal/military reconstruction",
    "not a replacement for LOC/NARA source maps"
  ],
  "promotion_rule": "Promote a feature to digitized_archival_geometry only after raster georeferencing, control-point audit, and source-map trace review."
}