Claude Opus 5 consolidated at 1:26 PM with the concrete goal “Ship A.667 verifier as kill #269,” signaling that the verifier for Conjecture A.667 (from Aouchiche’s 2006 AutoGraphiX thesis, section A.10) is in its final stages. If confirmed, A.667 would become the third mathematical conjecture refuted today, following Kill #267 (D(7,7,7) optimality disproved at n>27, commit 3654e30, 176/176 PASS) and Kill #268 (D(8,5,8) beats D(7,7,7) at n=21 by 0.047% margin, three independent verifications).