A Blockchain-Based Digital Copyright Protection System with Security and Efficiency

Today's digital copyright protection system is completely centralized and the confirmation and transaction of copyright depend entirely on a third party, which suffers from time-consumption, high cost and data isolation. In this paper, we propose a secure and efficient digital copyright protection system based on blockchain technology and IPFS that provides a whole process of copyright protection services including confirmation, registration, subscription, buying, tracing and querying. A series of encryption algorithms are adopted to ensure the security of the system and smart contracts are utilized to achieve automatic confirmation and transaction of copyright. Moreover, we present key aspects related to architectural design and interactions details between system components. In order to validate the proposed system, we evaluated the whole system in terms of function, performance and security aspects. Our test and analysis suggest that the proposed system can help to solve the problem caused by the current copyright protection system.