USDT0, a cross-chain version of the stablecoin USDT, has been integrated with Bitcoin's second-layer network, Rootstock. This integration allows for a unified full-chain deployment, maintaining a 1:1 backing with USDT on Ethereum. While USDT0 is fully backed by USDT, it operates independently of Tether's direct management, enhancing cross-chain compatibility for stablecoin users.