According to People's Daily News, at the 2019 International Two-Dimensional Code Industry Development Conference, Zhang Chao, Dean of Zhongguancun Gongxin QR Code Technology Research Institute, said in an interview that the Institute's two-dimensional code object identification system was released in 2014. IDcode is the only international code advocated by China and distributed globally. The global resolution and blockchain authentication mechanism of “MA” can assign a globally unique QR code identity to every object in the real world. It solves the problems of traditional two-dimensional code technology, such as code chaos and poor security. It has the advantages of security, credibility, interconnection, low cost and rich application scenarios.