CMB Confrontation · Paper 27

Paper 27 — Theorem-Grade Closures for the Scalar-Bridge Perturbation Sector

Paper 27 v2.0 repairs the scalar-bridge perturbation sector: lifted carrier, C1a cross-term vanishing, rank-one scalar quotient protection, residual-state boundary, and R4/FIRAS-audited reproducibility support.

Short form

Paper 27 — Source-Side Perturbation Sector Closure

Repairs Paper 27 as a theorem-grade scalar-bridge perturbation-sector paper. The current v2.0 support proves the lifted carrier, C1a cross-term vanishing, rank-one scalar quotient protection, and residual-state boundary while retiring the older CLASS/Planck-confrontation branch.