{
  "table": "T464",
  "family_issue": 199,
  "source_url": "https://arxiv.org/src/1603.04289v2/anc/Periods",
  "source_sha256": "093d458994903b3b397f3ce3cd5cc9578221c065e5a6b3fb0947abf1b2ddce19",
  "source_records": 10119,
  "evaluable_records": 852,
  "distinct_evaluable_expressions": 299,
  "source_decimal_values": 851,
  "exact_rational_values": 1,
  "unknown_records_omitted": 9267,
  "working_decimal_digits": [150, 200],
  "written_significant_digits": 100,
  "rigour": "heuristic (agreement-checked)",
  "note": "The family screening count of 851 labels and 298 distinct values omitted the exact one-loop period. This run preserves that source entry as exactly 1."
}