Ruff Chain combines IoT technology with blockchain. It contains a Distributed operating system and an open main chain, connecting the peer-to-peer network and the consensus mechanism from the virtual world to the reality. The traditional blockchain gives up the availability above consistency and partition tolerance, but Ruff realizes the availability through the combination of edge computing and blockchain, thus realizing the availability, thus meeting the elastic real-time requirements.The project goal is to solve the problem of reliable and heavy operation between IoT systems in different fields, thereby creating an open Ruff Chain ecosystem....