On August 17, a press conference was held on "several measures taken by Beijing to help enterprises alleviate hardship and improve the business environment". A reporter from Beijing Youth Daily learned at the meeting that Dai Ying, deputy director of the Beijing Municipal Development and Reform Commission, said that Beijing has established a real estate registration system based on block chain, with 15 types of real estate registration "full online", with an average of more than 30,000 online per month. Take the lead in the country to launch the "purchase qualification green code" online service, prospective buyers online login, within half an hour to get the purchase qualification verification results, a total of nearly 100000 reviews.