Solidity

The StableSwap invariant blends constant-sum and constant-product behavior with an amplification coefficient (A): near balance it behaves closer to constant-sum for tighter pricing, and as the pool becomes imbalanced it shifts toward constant-product to preserve liquidity. The benefit is concentrated liquidity around the peg without relying on external oracles for pricing, which improves capital efficiency for LPs and reduces price impact for traders.

During a fast proposal's veto period, token holders can vote AGAINST. If enough AGAINST votes accumulate to reach the veto threshold, the proposal automatically spawns a full confirmation vote (the slow path) under a new proposal id. Fast proposals are protected by a proposer throttle that limits how many optimistic proposals each account can create per 24-hour window.