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Journal of Shanghai University >

2022 , Vol. 28 >Issue 3: 413 - 426

DOI: https://doi.org/10.12066/j.issn.1007-2861.2376

Data Collection, Database and Data Processing

Blockchain based data copyright protection and combinatorial auction

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  • 1. School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
    2. Center of Materials Informatics and Data Science, Materials Genome Institute, Shanghai University, Shanghai 200444, China
    3. Zhejiang Laboratory, Hangzhou 311100, Zhejiang, China

Received date: 2022-03-15

  Online published: 2022-05-27

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Abstract

A data copyright protection and combinatorial auction system was designed and implemented based on blockchain, digital watermark and sealed bids combinatorial auction. First, a smart contract was applied to store the copyright data and their transaction record via a decentralized technique known as blockchain, which could achieve consensus between each node who did not trust each other. Consequently the system could be rendered more trustworthy. Moreover, a digital watermark was a unique code hidden in data, which could be used to prove the ownership of copyright. The results showed that the watermark module used in the system barely altered original data and was efficient when embedding and extracting watermark. Finally, a combinatorial auction algorithm was designed to select an optimal bid combination automatically to implement the value exchange of data copyright.

Key words： digital copyright; digital watermark; blockchain; smart contract; combinatorial auction

Cite this article

XU Yuqin, QIAN Quan . Blockchain based data copyright protection and combinatorial auction[J]. Journal of Shanghai University, 2022 , 28(3) : 413 -426 . DOI: 10.12066/j.issn.1007-2861.2376

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