The Grey Cloud Protocol is committed to developing a third type of blockchain ecosystem beyond Bitcoin and Ethereum, and is committed to expanding the application and technical boundaries of blockchain technology, so that ordinary internet users can feel the value of blockchain technology. In grey cloud systems, point-to-point value transfer can be achieved through value transfer protocols, and based on this protocol, a decentralized application that supports multiple industries (finance, IoT, supply chain, social welfare, etc.) can be constructed....