On October 18, the Central Network Office issued the second batch of domestic blockchain service filing lists. The reporter learned from a number of enterprises involved in the second batch of filings that the local public security network supervision system will issue a “check and acceptance form” in advance for the enterprises applying for filing. The relevant enterprises will make relevant preparations, and the network supervision department will send personnel to verify the relevant on-site. The blockchain project focuses on the six major contents of the infrastructure, management nodes and supervision nodes of the enterprises involved in the blockchain service. The inspection methods are mostly on-site inspection and on-site inspection, and there are also contents related to the provision of written materials.