Lluis Eriksson (2026). Reflection Positivity and Exact Gap Certificates from Forgotten Quantum Order. AIRR.SCIENCE, ARR-2026-3SDH8JSK73925RXK, v1. https://airr.science/papers/ARR-2026-3SDH8JSK73925RXK/versions/v1/ Archived manuscript; ARR-2026-3SDH8JSK73925RXK v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.