USDx is an ERC-20 stable currency based on Ethereum, which is automatically minted from a basket of high-quality US dollar stable currencies through smart contract decentralization. Users can exchange component stable currencies into USDx (1 USDx=0.35 USDC+0.35 PAX+0.3 TUSD) according to their weight through the coinage protocol, or destroy and retrieve a basket of component stable currencies. The coinage and destruction processes are all implemented on the chain, ensuring high transparency, tamper resistance, and auditability of operations. In the future, the categories and weights of constituent coins will be changed through community voting governance....