This preprint presents a referee-facing program note for a TEBAC-based obstruction route to Fermat-type equations. Its purpose is not to claim a theorem-level proof of Fermat’s Last Theorem, but to organize a disciplined arithmetic-to-topological bridge in a form suitable for staged refinement. The manuscript fixes a structured module chain, identifies the preferred obstruction language, isolates the comparison architecture, and develops a theorem-facing roadmap for a prime-indexed twisted APS framework. In particular, it records the arithmetic input package, the lift-side boundary-character route, the phase-indexed comparison formalism, the twisted APS comparison layer, the divisibility-by-ppp obstruction target, and the restricted reassembly strategy intended for future theorem-level closure. The current version should be read as a research roadmap and obstruction-program manuscript: it clarifies the logical architecture, states explicit construction targets, introduces audit and viability frameworks, and separates what is structurally organized from what remains unproved. Future versions are intended to strengthen the prime-indexed spectral and local packages, the reconstruction identities, the comparison bridge, and any eventual contradiction mechanism for p>2.
Tosho Lazarov Karadzhov (Thu,) studied this question.