The China Alliance (DHLM) platform is a global ledger based information exchange and collaboration cloud platform based on blockchain technology. It interfaces with the application layer through APIs to digitize people, things, or events in the real world and achieve information interconnection. DHLM Ecological Environment: Information is relatively transparent and symmetrical; Minimize trust friction between different participants; Different participants showcase their strengths and contribute their own value to the commercial ecological environment, thereby obtaining relatively fair rewards; Realize high-speed value circulation and continuously expand commercial closed-loop....