Ruff Chain is a blockchain platform that integrates Internet of Things (IoT) technology. It features a distributed operating system and an open main chain, which connects peer-to-peer networks and consensus mechanisms from the virtual world to reality. Unlike traditional blockchains, Ruff Chain prioritizes Availability alongside Consistency and Partition Tolerance by combining Edge Computing and blockchain technology. This enables real-time requirements and creates an open ecosystem for Ruff Chain, aiming to solve trusted and onerous operations between IoT systems in different domains.