# LIB2-296 — Superseded singular-vacuum premise of the protection-and-bounce chain

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

## Statement

The archived protection-and-bounce chain assumed a vanishing determinant and a vanishing third eigenvalue at the working vacuum.

## Caution

The normalization replacement does not exclude singular Jordan elements or independently adjudicate the old Z-mass protection and bounce implications.

## Primary source

Appendix I, §6, Remark 6.4: vacuum normalization supersession, PDF p.219: "the legacy vacuum normalization diag(ϕ2 , 1, 0) is superseded by the current {ϕ, 1, ϕ−1 } frame, the structural statements unaffected."

## Machine

- url: /library-v2/LIB2-296/
- content_sha256: 4339b5ccf9ee8b10e4dd6ddd6211d95a7db473cf523bbd8f455f35ea10e0c6a5
- candidate_ids: C2-002

## Freshness

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