Intellectual-property (IP) rights refer to the ownership of intellectual achievement.Microfilms are getting popular nowdue to their low production cost. However, their IP rights are often violated as microfilms can be copied and transmitted via mobile devices easily.This paper proposes using blockchain (BC) to develop an IP-protection model for microfilms. Information registered at a BC cannot be changed without being notified, and this provides an ideal setting for IP protection. This paper proposes a BC-based framework for microfilms in China.