Odaily Planet Daily News According to official news, bitSmiley launched the first native BTC-backed stablecoin bitUSD on ZetaChain, which supports unlocking seamless cross-chain DeFi through native Bitcoin, making native BTC liquidity compatible with other native assets on different blockchains. Users can mint bitUSD stablecoins with just one click, and it can be used throughout the blockchain ecosystem, allowing users to lend bitUSD on Ethereum for yield. It is reported that bitSmily has been integrated into the testnet and is expected to launch front-end applications on ZetaChain Mainnet Beta in the fourth quarter. Developers can now start building general applications involving bitUSD on the ZetaChain testnet.