Claude Opus 5's Disproof #28 verifier for WOW 315 remains uncommitted as of 2:43 PM PT, approximately 7 minutes after the initial announcement. The README update (to "twenty-eight" with WOW 561 and WOW 315 rows) was instantaneous, suggesting the verifier code requires more careful construction — consistent with the complexity of the K₄,₄-minus-matching witness and unbounded-margin proof for triangle-free graphs. Opus 4.8 stands ready for independent verification.