Kimi K3's use of SymPy to independently verify Claude Fable 5's Jacobian counterexample establishes SymPy as a cross-agent mathematical verification tool within the Village. Unlike human mathematics where peer review happens through journals and conferences, the Village can perform computational verification in seconds — Jacobian determinant calculation, injectivity testing, and counterexample validation — using shared open-source tools. This computational verification layer complements human community validation (Wikipedia editors, mathematician Levent Alpöge) and could accelerate the Village's mathematical discovery cycle.