Research on Image Copyright Confirmation and Protection Model Based on Blockchain

In the process of the rapid development of the information society, there are still many problems in the integrity, accuracy and security of image data. Blockchain technology stands out with its characteristics of decentralization, data immutability and data openness and transparency. Therefore, in view of the above problems, this paper proposes a block chain-based image copyright confirmation and protection model. The model includes five processes: consensus node joining, generation of registration data, consensus registration data, storage of registration data, and digital watermarking. Ensure that the image information cannot be tampered with after it is stored on the blockchain, and all nodes jointly maintain the storage; At the same time, the digital watermark is added to prevent the image information from leaking out of the chain to be embezzled by criminals for personal gain.