{
  "reader": "IfcOpenShell",
  "version": "0.8.2",
  "product": 59290,
  "canonicalNativeVsExportedReference": {
    "aToBSampledSurfaceDistanceMetres": 0.0,
    "bToASampledSurfaceDistanceMetres": 0.0,
    "aVolumeCubicMetres": 19.96825731316872,
    "bVolumeCubicMetres": 19.96825731316872,
    "volumeDifferenceCubicMetres": 0.0
  },
  "sourceSnapshotPlannedItem": 100001,
  "actualExportedItem": 79109,
  "canonicalNativeVsAuthoredRawTfs": {
    "aToBSampledSurfaceDistanceMetres": 0.0,
    "bToASampledSurfaceDistanceMetres": 0.0,
    "aVolumeCubicMetres": 19.96825731316872,
    "bVolumeCubicMetres": 19.96825731316872,
    "volumeDifferenceCubicMetres": 0.0
  },
  "originalReaderVsCanonicalNative": {
    "aToBSampledSurfaceDistanceMetres": 7.054037656217815e-05,
    "bToASampledSurfaceDistanceMetres": 0.0001252296254604303,
    "aVolumeCubicMetres": 19.967154915720993,
    "bVolumeCubicMetres": 19.96825731316872,
    "volumeDifferenceCubicMetres": 0.0011023974477275544
  },
  "exportedDefaultReader": {
    "triangles": 46,
    "volumeCubicMetres": 19.060408644552933
  },
  "exportedReferenceSemanticsReader": {
    "triangles": 32,
    "volumeCubicMetres": 19.96825731316872
  },
  "changedExistingEntities": [
    59286,
    59354
  ],
  "sourceSchemaFindings": 170,
  "exportSchemaFindings": 169,
  "newSchemaFindings": [],
  "surfaceSampling": "Bidirectional exact point-to-triangle distances for all vertices, triangle centroids and edge midpoints; this is a sampled surface comparison, not a full Hausdorff proof.",
  "referenceCaveat": "Default IfcOpenShell 0.8.2 incorrectly subtracts Reference openings; default-reader roundtrip equivalence is not claimed."
}