Dashi Car Chain 3.0 is a decentralized automotive ecological data service platform established based on the transparent, trustworthy, and irreversible characteristics of blockchain. DACH3 (Dash Car Chain 3) utilizes distributed storage and circulation of multi-dimensional data in the supply chain, data chain, and value chain to achieve the standardization of accessories, vehicle production, vehicle circulation, owner consumption, vehicle consumption, driving behavior, vehicle residual value, automotive finance, and other data on the chain, conversion, traceability, and data triggering applications. The 3.0 ecosystem will serve 240 million users in the future, empowering the automotive physical industry. With the increasing application scenarios of Dashi Car Chain, DACH3 will gradually enter a deflationary economic era. Smart contracts will implement the destruction mechanism of token, reduce the circulation of DACH3 in the market and promote market value....