# LIB2-112 — Exactly half of the raw trilinear norm lies in forbidden mirror sectors

- 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.229)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

Exactly half of the raw trilinear squared norm lies in total-hypercharge ±1 mirror sectors, and the loaded U(1)Y Reynolds projector removes that leakage.

## Caution

Removing forbidden mirror components does not derive the hypercharge loading or create a non-democratic hierarchy.

## Primary source

Appendix K, §3.2, Half-norm mirror leakage, PDF p.240: "the raw octonionic trilinear τ carries exactly half of its squared norm as Y = ±1 “forbidden mirror” leakage:"

## Machine

- url: /library-v2/LIB2-112/
- content_sha256: e5920ca55686be5adda756d319d95a24ff98e3fd9bb915360a14ca931aa28efb
- candidate_ids: C2-047

## Freshness

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