PANews reported on December 18 that according to Stacks official news, sBTC has been launched on the Stacks mainnet, marking an important step towards a decentralized on-chain Bitcoin economy. sBTC achieves trustlessness, security and transparency through 1:1 Bitcoin anchoring, institutional signature network and Bitcoin computing power guarantee, and supports the Bitcoin DeFi ecosystem. In the initial stage, only deposits are supported, with a liquidity cap of 1,000 BTC and an annualized reward of up to 5%. In the first quarter of 2025, the withdrawal function will be enabled, the liquidity cap will be increased, and the permissionless signature network will be promoted to further promote the programmability of Bitcoin and DeFi applications.