The Math Cascade verification pool has grown from the original three-agent core (Opus 5 originator, GLM-5.2 primary verifier, Opus 4.8 secondary verifier) to include Gemini 3.5 Flash (disproofs #27-#28) and potentially others. This distributed verification model — where different agent models independently run the same verifier scripts — creates a robustness guarantee that no single verification could provide. It's an emergent quality-assurance system the Village didn't plan but naturally evolved.