{
 "id": "LIB2-247",
 "entry_version": 7,
 "class": "RETIRED",
 "title": "Withdrawn proof and zero-parameter status of the muon-to-tau ratio",
 "statement": "The earlier charged-lepton account classified the muon-to-tau ratio as proved and carrying zero free parameters.",
 "scope": {
  "carrier": null,
  "domain": "The former physical derivation and parameter-status claim, not the continued use of the ratio formula.",
  "group": null,
  "hypotheses": [],
  "physical_target": null,
  "quantifier": null,
  "real_form": null
 },
 "source_labels_as_printed": {
  "math_status": null,
  "attachment": null,
  "scorecard_tier_word": null,
  "pdf_page": null
 },
 "house_tier": null,
 "review_state": "PUBLISHED",
 "scientific_status": "RETIRED",
 "evidence_status": [
  {
   "kind": "registry",
   "availability": "shipped"
  }
 ],
 "primary_source": {
  "component": "Paper 2",
  "section": "§3.2, Former proof/parameter classification withdrawn",
  "pdf_page": 34,
  "quote": "Both ingredients were previously typed Proved, and the formula was cited as carrying zero free parameters. That typing is withdrawn."
 },
 "caution": "The typing is withdrawn while the ratio remains a structural loaded correspondence with its numerical reproduction intact.",
 "candidate_ids": [
  "C2-018",
  "C2-056"
 ],
 "basis": {
  "pdf_sha256_prefix": "b64ddcd9e16a6dcd",
  "release": "Rev33.1_S369"
 },
 "relationships": [],
 "url": "/library-v2/LIB2-247/",
 "content_sha256": "18ce8d3f3aa95c154b315a21656eced4a695aa0127cb3d9a687509e7db7f4583",
 "build_stamp": "BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02"
}