{
  "primary_source_objects": "Six declared (F,C) pairs plus common1406/6 anchors",
  "new_comparative_extension": "One named600-year partition comparison on each source object",
  "local_explanation": "Two merging defects reconstruct all alternate and refined totals",
  "exact_partial_maps": "Two SP refined upper branches translate uniformly; no full genealogical conversion",
  "connected_existing_family": "C1432 heads and supplied1700 relation form one Key/stage/mode circuit",
  "corollaries": [
    "Cumulative three-head triangle",
    "paired Key target gap formula",
    "same shared2700 extension on every refined path"
  ],
  "not_independent": [
    "Reciprocal Key round trip",
    "sum of two sides of a date triangle",
    "alternate/refined results reproduced by their two defects"
  ]
}