Constrained Null Geometry: Standard Model Closure, Phases 7–12.

This dataset contains the machine-readable certificates and verification cells accompanying the manuscript Constrained Null Geometry: Standard Model Closure, Phases 7–12. The files provide reproducibility support for the minimal CNG closure branch. They include numerical certificates, CSV/JSON outputs, and verification code for the gauge closure, electroweak/Higgs scale, fermion bridge spectra, CKM generation-mismatch sector, and minimal neutrino/PMNS leakage sector. The package also contains a geometric admissibility stress-test cell. This cell checks the internal CNG count registry, determinant-factor metadata, order/sign/branch-status rules, formula-level closure, and alternative-branch stress tests. It is intended as a reproducibility and consistency audit. It does not replace the geometric derivations in the manuscript and appendices. The main closure chain verified by the certificates is: Phase 7 gauge closure→Phase 8 electroweak/Higgs closure→Phase 9 fermion bridge spectra→Phase 10 CKM mismatch→Phase 11 minimal neutrino/PMNS closure→Phase 12 master closure. Phase 7 gauge closure Phase 8 electroweak/Higgs closure Phase 9 fermion bridge spectra Phase 10 CKM mismatch Phase 11 minimal neutrino/PMNS closure Phase 12 master closure. Phase 7 gauge closure→Phase 8 electroweak/Higgs closure→Phase 9 fermion bridge spectra→Phase 10 CKM mismatch→Phase 11 minimal neutrino/PMNS closure→Phase 12 master closure. The heavy-quark charm and bottom entries are labelled as QCD/MS-like audit quantities, not as free-particle pole-mass theorems. The neutrino sector corresponds to the minimal normal-ordering positive Takagi branch. Included materials JSON and CSV numerical certificates Master formula-level verification cell Geometric admissibility and stress-test cell SHA-256 manifest README documentation Reproducibility note Running the included verification cells reproduces the formula-level closure and checks the internal admissibility registry used in the manuscript. The cells are designed for direct execution in Python or Google Colab.