zkCrowd: A Hybrid Blockchain-Based Crowdsourcing Platform
zkCrowd: A Hybrid Blockchain-Based Crowdsourcing Platform
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DOI：
10.1109/tii.2019.2941735
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发表时间：
2020-06
影响因子：
12.3
通讯作者：
Saide Zhu;Zhipeng Cai;Huafu Hu;Yingshu Li;Wei Li
中科院分区：
文献类型：
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作者：
Saide Zhu;Zhipeng Cai;Huafu Hu;Yingshu Li;Wei Li
区块链是一个很有前途的去中心化范例，不仅可以用来克服传统众包系统的缺点，还可以带来技术创新，比如去中心化和问责制。然而，当区块链被纳入众包时，一些关键的固有限制在文献中很少得到解决，这可能会在众包系统中产生性能瓶颈。为了进一步发挥区块链与众包结合的优势，本文提出了一个创新的混合型区块链众包平台，命名为zkCrowd。我们的zkCrowd集成了混合区块链结构、智能合约、双重分类账和双重共识协议，以保护通信、验证交易和保护隐私。进行了理论分析和实验，以评估zkCrowd优于现有技术的优势。
Blockchain, a promising decentralized para-digm, can be exploited not only to overcome the shortcomings of the traditional crowdsourcing systems, but also to bring technical innovations, such as decentralization and accountability. Nevertheless, some critical inherent limitations of blockchain have been rarely addressed in the literature when it is incorporated into crowdsourcing, which may yield the performance bottleneck in the crowdsourcing systems. To further leverage the superiority of combining blockchain and crowdsourcing, in this article, we propose an innovative hybrid blockchain crowdsourcing platform, named zkCrowd. Our zkCrowd integrates with a hybrid blockchain structure, smart contract, dual ledgers, and dual consensus protocols to secure communications, verify transactions, and preserve privacy. Both the theoretical analysis and experiments are performed to evaluate the advantages of zkCrowd over the state of the art.