The China Education and Research Computer Network Federated Authentication and Resource Sharing Infrastructure (CARSI) provides federal authentication and global academic information resource sharing services for universities and research units that have established unified identity authentication on campus networks. No VPN is required and is not restricted by the authorization of campus IP addresses. You can directly access authorized resources using a campus network account anywhere with the internet. Since the COVID-19 broke out in the spring of 2020, which effectively solved the pain point problem of academic resource access when teachers and students were at home, it has made great progress in the past three years, gradually transitioning to comprehensively assisting the construction of campus informatization. The online resources cover online teaching, industry data, research support, intellectual property, news and information, innovation and entrepreneurship, tool software, campus public services, and other fields. Welcome more campus information resources to join CARSI.