IOST is an innovative and secure blockchain technology that provides a highly scalable, high-throughput ecosystem for online virtual services and digital goods exchange. In addition, the IOST ecosystem also enables developers to serve a large number of users with extremely large decentralized applications deployed on the blockchain. The IOST network adopts a series of original technologies including EDS (Efficient Distributed Fragmentation) technology and Proof-of-Believability consensus approach, which greatly enhances the system throughput while ensuring the system's Safe and reliable.