Based on Ultrain, we are committed to providing a computing service called trusted computing. This is a brand-new computing service model that differs from traditional cloud computing. Compared with traditional cloud computing, it is a new computing model based on the blockchain architecture. This computing model includes CPU computing, GPU computing, memory computing, hard disk resources, bandwidth resources, etc., which can all be included within the scope and framework of the entire trusted computing. All the computing has the characteristic of blockchain computing, that is, all data based on trusted computing and operations on these data cannot be tampered with or destroyed and are transparent to all and traceable.