# LIB2-217 — SL-14: First-row |Vud| comparator

- class: COMPARATOR · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.46)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The ledger’s first-row comparator for |Vud| is 0.97367 ± 0.00032.

## Primary source

Paper 3, §2, Vud comparator supplied in the suite, PDF p.49: "PDG 2026 |Vud | = 0.97367 ± 0.00032"

## Machine

- url: /library-v2/LIB2-217/
- content_sha256: b14a0b81369fbc568b0324ca6fe954179f986f700051a255acee32cfd882ea40
- candidate_ids: C2-192

## Freshness

- BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02
- Declared volatile fields (R36): BUILD_STAMP