HXB is a virtual token issued by the Puqiao Smart City system, aimed at verifying the core value of HXB's new economic system through an economic and information construction mechanism. HXB is a decentralized operation of smart contracts and the implementation of physical entities in Dapp. It is a trust mechanism that benefits blockchain, a smart contract, and opens the Rongrong blockchain investment platform. With the help of blockchain decentralization, distributed databases, and other technological features, "physical assets" have broken through the limitations of traditional technologies. To solve the problem of mobile cryptocurrencies, we aim to integrate the mobile network of cryptocurrencies worldwide, making it easier to convert between telecommunications mobile currencies and prepaid and post paid billing platforms....