Research On Self-Media Copyright Management Based On Blockchain

With the rapid development of the Internet and information technology,digital works such as selfmedia works are easy to spread and copy,resulting in frequent infringements.Therefore,it is necessary to do research on the copyright protection of digitized works.Most of the traditional digital rights management methods adopt a centralized management mode,which has problems such as a long period of rights confirmation and low data storage security.Blockchain technology has the characteristics of decentralization,non-tampering,and traceability,which provides an idea for the trusted management of self-media copyrights.This thesis researches the self-media copyright management based on blockchain,and proposes a solution for self-media copyright management based on blockchain.The contributions of this thesis are as follows:(1)The model of self-media copyright management based on blockchain is proposed,including the participants of copyright management,the trusted identification of copyright management information and the data model of copyright management.On the assumption that the identities of the participants in copyright management are authentic,in order to ensure that the two operations of copyright registration and copyright inquiry in the process of copyright management are credible,trusted identifications of copyright registration information and copyright inquiry information are designed.With reference to the block structure of Bitcoin,the transaction structure and block structure of copyright management are designed,and the data storage process of copyright management is analyzed.(2)The authentication mechanism of self-media copyright management based on the blockchain is proposed.Before the data is stored in the blockchain,in order to ensure the authenticity of copyright registration information and copyright inquiry information,the authentication algorithm for copyright registration and the authentication algorithm for copyright inquiry are designed to realize the authenticity verification of copyright management information.(3)The similarity detection mechanism of self-media works based on blockchain is proposed.The existing blockchain-based digital rights management solution uses a cryptographic hash algorithm to calculate the hash value of the entire self-media work as the unique feature value,which cannot guarantee the originality of the content of the self-media work.Taking the self-media works of text and pictures as an example,the text similarity detection algorithm and the image similarity detection algorithm are applied to copyright management based on the blockchain.The similarity detection mechanism can ensure the originality of self-media works,and the data storage of copyright registration information can be realized by calling the method in the smart contract after detection.In order to verify the proposed solution,a blockchain-based copyright management system is implemented in simulation.The smart contract of copyright management is designed and implemented in the simulation system,and various functions of copyright management are designed and implemented.Simulation experiments and tests are carried out on the simulation system,and the test results show that the solution is feasible.