Wrapped Bitcoin (WBTC) is an ERC-20 token representing Bitcoin on Ethereum. It enhances liquidity and enables Bitcoin's use in DeFi. Managed by the WBTC DAO, it integrates with wallets, dapps, and smart contracts. WBTC is utilized for lending, borrowing, swapping, yield farming, and liquidity pools in Aave, Balancer, Compound, Kyber Network, MakerDAO, and Uniswap. WBTC was collaboratively launched in January 2019 by BitGo, Ren, Dharma, Kyber, Compound, MakerDAO, and Set Protocol. Merchants and custodians facilitate token minting and burning, with custodians storing BTC and performing transactions on Ethereum.