SXC (Stable XT Cash) is a stable token issued by the XT Foundation based on the Ethereum (erc20) Smart Contract. The value of SXC is based on the comprehensive price of cryptocurrencies such as QC and CNYT. The initial state of SXC is fully locked, so users can mortgage digital assets to swap. The SXC in circulation is mortgaged at 100% of the value. The collateral can be mainstream digital assets including BTC, ETH, LTC and QTUM, and all circulation records should be tracked on the blockchain.