Declarations

and attribution. The exact correction/no-hiding structure and the KSW tradeoff are established quantum-information results. The present contribution is their explicit interface assembly, repaired error direction and normalization, and access-preserving endpoint contract. No claim of discovering those standard theorems is made.

status. Cheung manuscripts are cited for the supplied documentary relationships and versioned boundaries. None is a premise of a local proof in this paper.

scope. No spacetime metric, horizon, area law, Page curve, entanglement wedge, holographic dictionary, invariant physical speed, or gravitational evaporation endpoint is derived.

scope. No complete characteristic joint map, quantum admission of ${R_1}^{(1)}$, interacting differential, or Ward defect for an absent coefficient is constructed.

and build scope. This is a single-source pdflatex manuscript with an internal bibliography and no external graphics or bibliography database. No successful compiler execution, proof-assistant check, independently executed symbolic calculation, numerical rerun, referee approval, or journal acceptance is asserted.