The purpose of establishing the HJIG chain is to integrate and optimize all processes related to purchase, operation, and vehicle maintenance. Currently, there are a large number of interactive automotive platforms on the market. Each of them has specific functions, such as selling cars, checking vehicle accident records, and repairing cars. The dispersion of these functions is very inconvenient for car owners. By combining artificial intelligence, big data analysis, and Internet of Vehicles technology with blockchain, a unique interactive blockchain comprehensive system will be created to address these shortcomings. We have developed a decentralized automotive aftermarket service chain that serves a large number of car owners, opening a new era of truly implementing blockchain applications.HJIG believes that future cars will be electric, autonomous, shared, interconnected, and updated year by year. The various roles in the ecosystem, as well as the contributors and consumers of data. Around data, ecological partners can collaborate with each other to form ecological complementarity, promote industry progress, and make human travel more convenient and safe....