According to online reports, Kraken has launched a Bitcoin pledge service that integrates the DeFi protocol Babylon. Users can directly entrust BTC through Kraken to support PoS networks and earn revenue, with an annualized rate of return of up to 1%. This mechanism does not involve cross-chain bridging, packaging or lending. BTC remains in the Bitcoin main network. The Taproot time-lock mechanism ensures the security of users 'self-held assets, and rewards are paid in Babylon's native token BABY.