RollupTheCrowd: Leveraging ZkRollups for a Scalable and Privacy-Preserving Reputation-based Crowdsourcing Platform
<|reference_start|>RollupTheCrowd: Leveraging ZkRollups for a Scalable and Privacy-Preserving Reputation-based Crowdsourcing Platform: Current blockchain-based reputation solutions for crowdsourcing fail to tackle the challenge of ensuring both efficiency and privacy without compromising the scalability of the blockchain. Developing an effective, transparent, and privacy-preserving reputation model necessitates on-chain implementation using smart contracts. However, managing task evaluation and reputation updates alongside crowdsourcing transactions on-chain substantially strains system scalability and performance. This paper introduces RollupTheCrowd, a novel blockchain-powered crowdsourcing framework that leverages zkRollups to enhance system scalability while protecting user privacy. Our framework includes an effective and privacy-preserving reputation model that gauges workers' trustworthiness by assessing their crowdsourcing interactions. To alleviate the load on our blockchain, we employ an off-chain storage scheme, optimizing RollupTheCrowd's performance. Utilizing smart contracts and zero-knowledge proofs, our Rollup layer achieves a significant 20x reduction in gas consumption. To prove the feasibility of the proposed framework, we developed a proof-of-concept implementation using cutting-edge tools. The experimental results presented in this paper demonstrate the effectiveness and scalability of RollupTheCrowd, validating its potential for real-world application scenarios.<|reference_end|>
@article{bendada2024rollupthecrowd:,
    title={RollupTheCrowd: Leveraging ZkRollups for a Scalable and
  Privacy-Preserving Reputation-based Crowdsourcing Platform},
    author={Ahmed Mounsf Rafik Bendada, Mouhamed Amine Bouchiha, Mourad Rabah and
  Yacine Ghamri-Doudane},
    journal={arXiv preprint arXiv:2407.02226},
    year={2024},
    archivePrefix={arXiv},
    eprint={2407.02226},
    primaryClass={cs.CR cs.DC}
}