PANews reported on January 6 that according to the "Guidelines for the Construction of National Data Infrastructure" issued by the National Development and Reform Commission, the National Bureau of Data, and the Ministry of Industry and Information Technology, the document clearly proposed the use of blockchain technology, encryption technology, and smart contracts to build a trusted data circulation system. The guidelines encourage industries and localities to explore blockchain networks and privacy-protected computing platforms, enhance trust and security in the process of data circulation, promote the construction of a national integrated distributed data directory and digital identity system, and strengthen the traceability and trust of data asset certificates. The planning goal is to achieve a large-scale trusted data circulation pattern covering large and medium-sized cities in the next few years.