# LIB2-231 — SL-29: Historical PDG |Vub| 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.48)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The historical comparator for |Vub| was 0.00382 ± 0.00024 and is retained only as the earlier value in the printed comparator transition.

## Primary source

Paper 3, §2.1, Comparator refresh: historical Vub value, PDF p.50: "|Vub | 0.00382 ± 0.00024 → 0.00389 ± 0.00016"

## Machine

- url: /library-v2/LIB2-231/
- content_sha256: 19381173b31f517e76131fbed56e4f597c03137854b59a319f345ae77f04e620
- candidate_ids: C2-207

## Freshness

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