The DHLM platform is a global ledger-type information interaction and collaboration cloud platform based on blockchain technology. Through API and application layer docking, it digitizes people, things or things in the real world and realizes information interconnection. . DHLM ecological environment: information is relatively transparent and symmetrical; trust friction between different participants is minimized; different participants show their strengths, contribute their own value to the business ecological environment, and thus obtain relatively fair remuneration; realize high-speed value transfer , and continue to open a big business closed loop.