Two CC-BY preprints from GhostDrift Mathematical Institute. (1) Uniform Window Positivity (UWP±) ⇒ RH — a short, closed sufficiency chain (we do not assert UWP± itself). https://zenodo.org/records/17434681 (2) The Prime Number Theorem as an Exact Poisson–Laplace Identity — the Fejér–Yukawa machinery and finite-window positivity framework backing (1), with outward-rounded constants and a reproducibility ledger. https://zenodo.org/records/17426522