币界网报道：Kraken has integrated with DeFi protocol Babylon to introduce bitcoin "staking," allowing users to earn passive rewards on spot BTC holdings without wrapping or lending. Users can delegate their BTC via Babylon to secure PoS networks, receiving weekly rewards in BABY tokens while retaining full ownership of their bitcoin, which remains on-chain. The feature is available in select regions, including the U.S. (excluding some states), U.K., Australia, and UAE, with a seven-day unbonding period for withdrawals. Kraken's Mark Greenberg highlighted the opportunity to utilize idle BTC for yield while supporting PoS chains' security. Unlike traditional lending programs, this model uses Bitcoin's Taproot scripts for time-locked collateral without cross-chain transfers. Babylon's protocol, which launched its Genesis mainnet in April, supports multiple chains like Ethereum and Solana. BABY tokens, used for fees and governance, currently trade at $0.05 with a $113M market cap. Kraken continues expanding its offerings, including institutional prime brokerage and an upcoming Ethereum L2, Ink.