WIOT (World Internet Of Things) conducts in-depth research and analysis on the existing blockchain technology and the basic chain for the Internet of Things, finds out the problems that are not suitable for the Internet of Things in the traditional blockchain scenario, and aims at these A series of solutions were proposed for the problem, and WIOT was born. WIOT is based on the HashGraph architecture, supports the main chain and customized sub-chains, and includes programming languages, virtual machines, and smart contracts for the underlying IoT blockchain system ecology, and is committed to solving the application of blockchain in the IoT ecosystem.