How quickly each Foundry fork property diverges from mainnet reality. Five divergences — blockhash entropy, MEV competition, basefee, TWAP, and oracle price — rated by blocks until first silent failure. Click a bar to inspect fork behavior vs. production.
Foundry forks freeze five properties of the Ethereum execution environment that are live, adversarial, and expensive in production: basefee, oracle prices, blockhash entropy, MEV competition, and TWAP accumulation. Each one silently misleads AI agents through testing.