The Three-Sector Face Pair Is a Tight Frame and Erases the Orientation Defect
The two homotopy faces obey the universal polarization identity
Therefore the natural three-sector positive-energy defect is identically zero for every source. Its successful closure supplies no theta-specific or RH evidence.
The discarded observable is
The singular remaining obstruction is a source-derived instrument for this cross-face orientation. A hostile reversal preserves the entire tight-frame sum while reversing the interference term.
Research packet:
research/grothendieck/the-three-sector-face-pair-is-a-tight-frame-and-erases-the-orientation-defect.md
Checker:
research/grothendieck/checkers/check_three_sector_tight_frame_orientation_loss.py
The checker passes 6/6 gates.