SXC, fully known as Stable XT Cash, is a digital currency based on the Ethereum ERC20 smart contract. It is an independent digital currency issued by the XT Foundation. The SXC Foundation enables a portion of it to become circulating through the form of digital currency collateral. The circulating SXC is collateralized at 100% value, with the collateral potentially being any one of BTC, ETH, LTC, QTUM, etc. All users can participate in the collateralization and public display. The network transaction fee income generated from circulation is evenly distributed according to the collateral. The management of collateral is unified under the foundation.