The reporter learned from the National Blockchain Center on July 1: Recently, Xinhua News Agency State Key Laboratory, People's Daily Online, Chinese Academy of Sciences Documentation and Information Center, Beijing Radio and Television Station, Higher Education Press, Capital Library, Central Electronic Education Museum Publishing House, Wanfang Data, China National Knowledge Network and other key corpus data units announced that the United Nations Blockchain Technology Innovation Center will jointly establish a high-value corpus trusted and secure circulation ecosystem. Using cutting-edge information technologies such as blockchain and federated learning, the nationwide large-scale model corpus resources will form a sustainable and self-growing data supply ecosystem in the protection of privacy and security and the promotion of value-added incentives, and empower artificial intelligence large-scale models to accelerate high-quality development.