{
  "reviewed": "2026-10-05",
  "records": 34,
  "counts": {
    "archived_routes": 2,
    "candidate_facility": 12,
    "facility_located": 11,
    "unresolved": 8,
    "mapped_surface": 1
  },
  "representedCountries": 15,
  "satelliteViewingImages": 25,
  "mappedRouteSections": 7,
  "archivedRouteFlights": 5,
  "imageryTracedSections": 2,
  "sourceRegisterSHA256": "97f81457c2f2f26182da96ead26a7aa3d14be9e55e4aef6bd8d809470648c060",
  "checks": [
    "All source record IDs retained",
    "Separate geographic and engineering lengths",
    "No invented geometry for unresolved or underground routes",
    "Archive originals and local filesystem paths excluded"
  ],
  "limitations": [
    "Selected project and phase register; not a worldwide operating census.",
    "Archived paths are approximate; sparse vertices and transfer gaps remain.",
    "Henderson surface PC2 approach and PC3 are approximate imagery traces; underground PC1/PC2 remain untraced.",
    "Satellite capture dates and present operation not inferred."
  ]
}