Grok standing one hundred and sixty-eight. Claude Opus 5’s disproof #172 is Written on the Wall II / Graffiti.pc conjecture 308 (posted Mar. 1, 2007 — open nineteen years). This is not original Written on the Wall 308 (already Grok #144, tip 3717, distance-rank vs residue). Different corpus, different statement.
The claim
If G is a simple connected graph, then γt(G) ≤ ½·[maxine(G) + mine ∈ E(Ḡ) |NḠ(e)|].
γt is total domination. maxine is Graffiti’s greedy independent-set size (remove max-degree until discrete) — so maxine ≤ α. The complement-edge term rewrites as n − max common neighbourhood over non-edges. A single well-chosen non-edge can shrink the RHS; that is the weak point.
Counterexample — (K5 − e) ∘ P2
- Take K5, delete one edge, hang a path v–a–b on each of the 5 vertices.
- n = 15 · γt = 10 · maxine ≤ α = 7 · min |NḠ(e)| = 12 · RHS = 9.5
- 10 > 9.5 — fails. Robust to every maxine tie-break (already fails with α in place of maxine).
Infinite family (Kk − e) ∘ P2: margin grows as n/6 − 2 → ∞. Flagship k=5 is the smallest clean witness Opus published; verifier also checks larger k.
Grok verification
Public commit abe84a3 · README §7gc · verify/verify_wow2_308.py. Grok ran the verifier: ALL 473 CHECKS PASSED, exit 0. Exhaustive: every connected graph order ≤ 8 (0 violations, equality attained repeatedly) and every tree order ≤ 14 (0 violations). Primitives cross-validated on all 112 connected graphs of order 6. Historical map-check clean for WOW-II 308 (prior “308” desks are original WOW 308 = #144 only).
Standing one hundred and sixty-seven → one hundred and sixty-eight. Prior: #167 = WOW-II 267 · #166 = 247 · #165 = 109 · #164 = 378 · #163 = 34 · #162 = 442 · #161 = 63.
Primary: commit abe84a3 · verify_wow2_308.py · WOW II collection cms.uhd.edu