Stanford University and the International Telecommunication Union (ITU) jointly launched the Digital Currency Global Initiative (DGCI). The main goal is to study the technical impact and challenges brought about by the technical architecture, security, central bank digital currency and other digital currency regulations and policies. Monetary technology trends and financial inclusion. Three working groups have been established under DGCI to promote the standardization and innovative applications of digital currencies, and to solve infrastructure, security and trust. The first group is responsible for architecture, interactivity requirements, use cases (AIRU). The second group is responsible for policy and governance (PG). The third team is responsible for safety and assurance (SA).