Recently, the Hangzhou Municipal Data Resources Administration completed the construction and trial operation of the first government-based blockchain system in Hangzhou, the “government service chain”. The blockchain system is operated by the Hangzhou Municipal Data Resources Administration. It is supported by Babbitt and basically meets the security and efficiency requirements of the government for the system. It adopts the technical framework of “one main and multiple sides” and initially lays out four blocks. Chain nodes, starting trial operation in May this year, totaled more than 3 million in 6 months, and actually supported the trusted application scenario. Following the first implementation of blockchain-based judicial forensics and blockchain-based car fairing system, the city has taken a step forward in the application of the blockchain construction in the government.