# LIB2-316 — Select the invariant required by the CKM-phase construction

- class: OPEN · review_state: IN_REVIEW · 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

Can a registered operator select the eigenvalue or invariant required by the retained CKM-phase construction without assuming the correction whose origin is to be derived?

## Caution

An algebraic identity after choosing a correction does not select that correction or derive the physical CKM phase.

## Primary source

Paper 3, Candidate Construction 2.1, Operator-based reopen condition, PDF p.54: "reopen only by a registered operator whose eigenvalue or invariant is G7 ."

## Machine

- url: /library-v2/LIB2-316/
- content_sha256: 99c092613ee6fd73ecc02e97e0afaf0bfa98d313567a0c10f8e4566c726b5f06
- candidate_ids: C2-012 C2-065

## Freshness

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