Digital collection is a limited distribution of virtual cultural goods, including but not limited to digital paintings, pictures, music, videos, 3D models and other forms. The digital collection of Chaoyun that Baidu's network disk is doing now is like this. It uses the blockchain technology of Baidu hyperlink to record the process of confirmation, distribution, purchase and use in the chain. Each digital collection corresponds to a specific work or artwork, and there is a unique serial number in the ownership chain as the only ownership certificate, which is inseparable and cannot be copied.

At present, the digital collection platform of Baidu website Chaoyun has launched "Dingding Zhongyuan Series Digital Collection", "Mengmiao Travel Notes Series Digital Collection" and "Dunhuang Series Digital Collection", which are not only of great ornamental value, but also of great historical significance. It is said that a series of digital collections dedicated to promoting traditional culture will be launched later, and those who are interested can pay more attention to it.