# LIB2-162 — The registered breathing weight is mirror-even and charge-blind

- class: CLAIM · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.130)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The registered trace-free breathing excitation of the alpha-plus-three-body bridge has weight Δbr = ϕ⁻¹⁵ − ϕ⁻¹⁸ and is mirror-even and charge-blind.

## Caution

The weight does not determine whether the excitation occurs in every parent typing; the A = 8 accounting remains open.

## Primary source

Paper 9, §7, Breathing-kernel typing, PDF p.134: "The breathing kernel (A1357): the same object, typed — the trace-free breathing excitation of the α + 3-body bridge, mirror-even and charge-blind, priced by"

## Machine

- url: /library-v2/LIB2-162/
- content_sha256: e79529b00eb34fe0e4d74e597976bd28e4a144f399bb8b8f8dbb9efd07191f68
- candidate_ids: C2-073 C2-075

## Freshness

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