III.R16 — Part IV Export Contracts

Binding export contracts: Part IV → Part V (spectral purity → NS, primorial verification → YM, ABCD decomposition → Hodge), Part IV → Part VI (Grand GRH → Langlands, adelic embedding → BSD), Part IV → Part VII (spectral algebra + CRT → computational bi-square, Master Schema E₀ → Master Schema E₂). Parts V-VII may enrich but must use same primorial ladder, lemniscate boundary, and CRT.