{
  "version": "version0009",
  "evidenceCutoff": "2026-09-30",
  "registration": {
    "status": "approximate_not_survey_registered",
    "printedGridTransformApplied": true,
    "empiricalShiftApplied": false,
    "withheldMatches": 17,
    "consistentMatches": 14,
    "falseDescriptorMatchesRetained": 3,
    "independentSurveyControls": 0
  },
  "preservation": {
    "holeRegister": true,
    "prices": true,
    "calculations": true,
    "sources": true,
    "originalScenes": true,
    "ulgCoordinates": "World positions unchanged; local origin moved by +1300x/+7000z"
  },
  "browserChecks": [
    "Both targets top overview",
    "ULG preset: nine modern cards, historical cards hidden",
    "Historical preset with draped June-map overlay",
    "RC08 and VB06 cards select correct depth logs",
    "VB pair remains shared",
    "Historical collar toggle hides cards",
    "Saved historical camera and overlay restore on reload",
    "Desktop and390px mobile screenshots reviewed",
    "No mobile horizontal overflow or interval-card overlap",
    "Original historical source view preserved"
  ],
  "limitations": [
    "Approximate imagery-supported placement, not surveyed coordinates",
    "Physical touch hardware not tested",
    "No underground trajectories"
  ]
}