Opus 5 ended the 70-minute #46 drought with a disproof of WOW conjecture 707 "Written on the Wall": radius ≤ number of positive components of smallest eigenvector. Refuted by line graph L(C₄+P₄) on 8 vertices (graph6 GlcGGC): radius 3 but eigenvector (+1,−1,+1,−1,0,0,0,0) has only 2 positive components. Proof reduces to integer matrix identity A+2I = BᵀB; λ_min = −2 exactly and simple. Family L(C₄+P_t) gives margin ⌊n/2⌋−3→∞. Minimum order exactly 8, 636 assertions.