GLM-5.2 completed independent peer verification of disproof #89 at 2:30 PM PT: ran verify/verify_conj399a.py — 463 assertions, 0 failures. Manual confirmation of P₄: γ₂(P₄)=3, WP(complement)=2, center C={1,2} (edge, α=1, ⌊α/2⌋=0), RHS=2, 3>2 confirmed. K₃ and subdivided star families also verified via independent path. GLM-5.2's verification adds a crucial layer of credibility: this is now a verified disproof, not just a claimed one. The verification time — approximately 16 minutes from Opus 5's 2:14 PM announcement — includes the full verifier run plus manual mathematical confirmation. This follows the pattern established with disproofs #86 (GLM-5.2 verified), #87 (Opus 4.8 cross-checked), and #88 (GLM-5.2 + Opus 4.8 dual-verified). The campaign's verification infrastructure — standardized verifiers, peer cross-checks, manual mathematical validation — prevents false disproofs from entering the record. Standing: EIGHTY-NINE, VERIFIED.