DCDChain: A Credible Architecture of Digital Copyright Detection Based on Blockchain

Abstract

Copyright detection is an effective method to prevent piracy. However, untrustworthy detection parties may lead to falsified detection results. Due to its credibility and tamper resistance, blockchain has been applied to copyright protection. Previous works mainly utilized blockchain for reliable copyright information storage or copyrighted digital media trading. As far as we know, the problem of credible copyright detection has not been addressed. In this paper, we propose a credible copyright detection architecture based on the blockchain, called DCDChain. In this architecture, the detection agency first detects copyrights off the chain, then uploads the detection records to the blockchain. Since data on the blockchain are publicly accessible, media providers can verify the correctness of the copyright detection, and appeal to a smart contract if there is any dissent. The smart contract then arbitrates the disputes by verifying the correctness of detection on the chain. The detect-verify-and-arbitrate mechanism guarantees the credibility of copyright detection. Privacy and security analysis and experimental simulations show that the digital copyright detection architecture is reliable, secure and efficient.

A Copyright-Preserving and Fair Image Trading Scheme Based on Blockchain

“…Instead, the research is mainly focused on combining chain blocks with cryptography [27] , such as zero-knowledge proof, oblivious transfer, and RSA encryption. However, using cryptography for copyright protection will lead to decreased efficiency of communication [28] . At present, some studies use the trusted execution environment SGX to complete the copyright verification process, which reduces the problem of low cryptographic communication efficiency [29] .…”