Usechain is dedicated to developing the first mirror identity blockchain ecosystem. Based on existing technologies in blockchain, Usechain becomes the first public blockchain to be built on Mirror Identity Protocol and integrated with multi-level innovations in technology and structure design, which can be used to break the bottlenecks in the development process of blockchain, provide infrastructure of technology for the virtual and parallel world in the future, build an identity blockchain system built on a new technical structure, develop more widely used DApps and provide underlying technical support for the application explorations in finance, consumption, entertainment, socialnetworking, games, IoT, supply chain management, asset management, and social management and add more value to identity by allowing people to be connected to the financial service provided by Wallstreet in an easy, convenient and instant way.