PumpBTC is a liquid staking derivative on the Babylon protocol, enabling Bitcoin holders to stake BTC across BNB Smart Chain, Ethereum, Mantle, Arbitrum, and Base, receiving yield-bearing PUMPBTC tokens for DeFi applications. Backed 1:1 by staked Bitcoin, it leverages centralized custodians like Cobo MPC and Coincover for security and supports seamless cross-chain operations.