v0.1.0-candidate — sharp four-factor Cohen–Macaulay obstruction

Version 0.1.0-candidate

Initial anonymous unrefereed candidate release of the complete coordinate
Schubert surface-union classification and the sharp four-factor path
obstruction. The supplied minor-revision report was actioned; a five-role
internal Evidence Press review then passed after bounded repair and one
confirmation. Candidate novelty and priority remain unestablished.

The full supplied review is retained privately because redistribution rights
were not established. Its SHA-256 and an original response matrix are public.