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Library / First Principles Framework (FPF) - Core Conceptual Specification
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A.19.CN:11.2 - RSCR — Regression (on change)

  • RSCR‑A19.4‑R01 (UNM edit). When normalization changes, flag every comparison and Bridge-use claim that cites that normalization for affected-only reassessment, then rerun the corresponding worked comparisons.
  • RSCR‑A19.4‑R02 (Slot surgery/Basis surgery). Adding/removing/renaming slot/basis requires a new edition; old data remain valid for their edition.
  • RSCR‑A19.4‑R03 (Chart drift). Updating measurement protocol bumps edition; historic Work keeps old edition link.
  • RSCR‑A19.4‑R04 (Fold change). Any change to Γ_fold invalidates cached roll‑ups; re‑compute or mark as superseded.
  • RSCR‑A19.4‑R05 (Bridge health). After either endpoint’s scheme, claim, or edition changes, revalidate the Bridge direction, correspondence, and loss before relying on it again; reopen only the claims that use it.
  • RSCR‑A19.4‑R06 (Deprecation rule). On deprecating a CN‑frame, Registry lists its successor; bridges re‑targeted or retired.
  • RSCR‑A19.4‑R07 (Certification basis). A change to the relied-on basis, relevant participation history or applicable control reopens only the certification and receiving conclusions it can change. A registry display change alone does not.