Application of Blockchain in Three-dimensional Land Management

At present, with the rapid development of urbanization in China, the concept of urban intensive development has been widely concerned. With the increasing number of excellent cases of three-dimensional land development (such as Shenzhen Qianhai), three-dimensional land management is facing double challenges in time and space. It is urgent to optimize the management mechanism and build a credible and efficient system to meet the collaborative needs of multi-agents participating in three-dimensional land development. First of all, it studies the inevitability of the development of urban construction land from two-dimensional development to three-dimensional development, and introduces blockchain technology to solve the problems of data security storage, transparency and credibility, tamper-proof traceability, privacy security and high reliability of the system. Then, the overall architecture system based on alliance chain is designed, and a system for managing the full-cycle development of three-dimensional composite multifunctional complex is built. The results show that the three-dimensional land management system based on Hyperledger Fabric can effectively promote the management of the whole life cycle of three-dimensional land development by various management departments, and coordinate the conflicts in time and space when the construction subjects develop the same three-dimensional composite urban complex.