Digital works on the Internet are widely created and used. However, the easily copied and modifiable nature of them makes copyright protection a huge challenge. The traditional copyright protection mechanism has problems such as centralization, opaque management, and easy evidence tampering, which affects the trust in copyright protection. In addition, although IPFS (InterPlanetary File System) provides a new storage method for files, the problem that it may cause file damage or loss if there are not enough nodes for continuous storage still hinders the security and integrity of data storage. To solve the above problems, we chose FISCO BCOS as the underlying chain platform, designed and implemented a copyright protection system based on microservice architecture, and proposed a distributed storage solution based on erasure coding and IPFS. Utilizing the advantages of erasure coding in data recovery to improve the data protection capabilities of IPFS. The system is currently running stably, basically meeting the needs of copyright confirmers and traders, and protecting the rights of copyright owners and copyright buyers.