According to Odaily, Superposition, a DeFi native L3 project based on Arbitrum One, has launched the first phase of its testnet. The project utilizes the Arbitrum Orbit technology stack and Stylus to provide a low-cost, fast DeFi experience. Its first on-chain DApp is Longtail, a V3 AMM in the Arbitrum ecosystem that follows the centralized liquidity model launched by Uniswap. It is also reportedly the first AMM built on Arbitrum Stylus.

Superposition is constructed by Fluidity Labs and includes an innovative on-chain order book. It focuses on controlling order flow and features faster execution speeds, shared and permissionless liquidity, account abstraction, and zero-fee characteristics. At the same time, it provides returns for liquidity providers and traders.