Computational artifacts

Inventory of XVI-M-artifacts/:

• Shared code and copies: xvi_common.py (byte-identical to XVI-L); m4_common.py; jet_euler.py.

• M.1: graph_general.py, with graph_general_out.txt and graph_general_table.txt.

• M.2: kernel_relations.py, with kernel_relations_out.txt, kernel_basis_table.txt (reconstruction certificates and numerator rows), kernel_relation_matrix.txt (nullspace vectors) and kernel_basis.json.

• M.3: contact_space.py, with contact_space_out.txt and graph_contact_map.txt ($u_m$, annihilators).

• M.4: contact_collapse.py, with contact_collapse_out.txt, collapse_kernel.json and collapse_kernel_certificates.txt; helmholtz_check.py, with helmholtz_check_out.txt, helmholtz_certificates.txt and helmholtz_summary.json; matching_probe.py, with matching_probe_out.txt and matching_certificates.txt.

• Stage 2: fixed_data_reading.py, with fixed_data_reading_out.txt, fixed_data_reading.json, prep_plateau_sa.json.

• M.5: counterterm_functionals.py, with counterterm_functionals_out.txt, matching_matrix.json/.txt, matching_certificates_M5.txt, ledger_*.json, ledger_tables.txt, m5_ledger_summary.json.

• M.6: scaling_anomaly.py, with scaling_anomaly_out.txt, scaling_anomaly_cert.json, scaling_anomaly_cert.txt.

• M.7 (audited): covariance_constraints.py (imports curvature_independent.py, the independent metric-linearization route), with covariance_constraints_out.txt, covariance_matrix.txt, covariance_certificates.txt, covariance_summary.json, covariance_exact_certificates.json (exact rational bases of $V$, ${\pi }_K(V)$, ${\pi }_{\mathrm{reg}}(V)$, $V\cap {\mathcal{C}}_{\mathrm{K}}$, $V\cap {\mathcal{C}}_{\mathrm{reg}}$ and the corrected equivariant vectors); m7_legacy_reconstruction.py with m7_legacy_reconstruction_out.txt and .json (reconstruction of the withdrawn numbers); completion stub completion_ledger_M89.json.

• Work package A (wpA/, Gate S-bv): kernel_identification.tex (source fragment of Section sec:wpA-Sbv), kernel_identification_checks.py (symbolic/numerical cross-checks; writes kernel_identification_out.txt), kernel_conventions.json (convention ledger, $c$, boundary side).

• Work package B (wpB/, scaling): scaling_prescription_identity.tex (source fragment of Section sec:wpB), higher_grade_scaling.py with higher_grade_scaling_out.txt, scale_derivative_coefficients.json, dilation_defect_coefficients.json, scale_defect_difference.json, full_scale_collapse_certificates.json, {matched_scale_le