Ether.fi Staked BTC (EBTC) is a cryptocurrency that allows users to stake their Bitcoin (BTC) to earn rewards. Staking involves locking up funds in a wallet to support the network and receive incentives in return. EBTC aims to provide a way for BTC holders to earn passive income by participating in the staking process. It is important to conduct thorough research and understand the risks involved before participating in staking activities with EBTC.