# LIB2-066 — The Vcb formula retains its loaded physical attachment

- class: CLAIM · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status Structural · attachment Loaded-correspondence · scorecard tier word Loaded-correspondence (PDF p.51)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The retained formula |Vcb| = 1/(9√7) gives 0.041996; its physical attachment inherits the atmospheric registration and the independently unforced integer 9.

## Caution

The exact formula does not select its integer or derive the physical atmospheric registration on which it depends.

## Primary source

Appendix B, §B.6, Vcb comparator row, PDF p.162: "|Vcb | 1/(9 7) = 0.041996 0.0407 ± 0.0013 +1.00σ"

## Machine

- url: /library-v2/LIB2-066/
- content_sha256: 472e88f51fb664c366a33dcb54fef70dd450962c93a404f39c2ce96dd82fc49e
- candidate_ids: C2-010 C2-063

## Freshness

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