[
  {
    "family": "Esau registers",
    "relation": "invertible integer measurement basis",
    "retained": "nine measurements and category/order map",
    "loss": "none in counts; absolute anchor remains separate"
  },
  {
    "family": "Tishri ledger",
    "relation": "conditional reconstruction",
    "retained": "margins, templates, festival equalities, daily44",
    "loss": "ambiguity returns when predicates are removed"
  },
  {
    "family": "NT knot",
    "relation": "two arrows, one metric-ratio equation",
    "retained": "trunk metric and slot roles",
    "loss": "scale free without added metric"
  },
  {
    "family": "Toledot sections",
    "relation": "occurrence contraction",
    "retained": "multiplicity for original measure",
    "loss": "section-level reflection remains obstructed"
  },
  {
    "family": "SP cap",
    "relation": "many-to-one projection",
    "retained": "begetting chain, baseline, Flood count rule",
    "loss": "excess lifespans and some internal placement"
  }
]