{
 "id": "LIB2-221",
 "entry_version": 7,
 "class": "COMPARATOR",
 "title": "SL-18: Measured tau-mass anchor",
 "statement": "The ledger’s measured tau-mass anchor is mτ = 1776.93 ± 0.09 MeV.",
 "scope": {
  "carrier": null,
  "domain": "PDG tau pole mass used as the suite’s external charged-lepton anchor",
  "group": null,
  "hypotheses": [],
  "physical_target": "mτ",
  "quantifier": null,
  "real_form": null
 },
 "source_labels_as_printed": {
  "math_status": "Input",
  "attachment": "NOT_PRINTED",
  "scorecard_tier_word": null,
  "pdf_page": 333
 },
 "house_tier": null,
 "review_state": "PUBLISHED",
 "scientific_status": "COMPARATOR",
 "evidence_status": [
  {
   "kind": "external",
   "availability": "shipped"
  }
 ],
 "primary_source": {
  "component": "Paper 2",
  "section": "§3.2, Equation (16): external tau anchor",
  "pdf_page": 34,
  "quote": "With the single external anchor mτ = 1776.93(9) MeV,"
 },
 "caution": null,
 "candidate_ids": [
  "C2-196"
 ],
 "basis": {
  "pdf_sha256_prefix": "b64ddcd9e16a6dcd",
  "release": "Rev33.1_S369"
 },
 "relationships": [],
 "url": "/library-v2/LIB2-221/",
 "content_sha256": "c501c0120278ad00bd79ed689324096f5a3fd96d5922afaad1c0c251a72b1f4e",
 "build_stamp": "BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02"
}