According to CoinDesk, the hybrid Layer 2 project BOB, driven by Bitcoin and Ethereum, has released its Hybrid L2 white paper. Hybrid L2 combines the security of Bitcoin with the innovation of Ethereum DeFi, aiming to make Bitcoin the core of the entire DeFi ecosystem. BOB's hybrid L2 design will fundamentally change the way Bitcoin is used in DeFi finance, supporting trustless Bitcoin deposits and withdrawals. BOB plans to operate a trustless cross-chain bridge powered by Bitcoin in the future, connecting to other chains that can validate the Bitcoin mainnet.