Multi-Tier Reputation for Data Cooperatives

Abiola Salau (), Ram Dantu (), Kirill Morozov (), Kritagya Upadhyay () and Syed Badruddoja ()
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Abiola Salau: University of North Texas
Ram Dantu: University of North Texas
Kirill Morozov: University of North Texas
Kritagya Upadhyay: University of North Texas
Syed Badruddoja: University of North Texas

A chapter in Mathematical Research for Blockchain Economy, 2023, pp 253-273 from Springer

Abstract: Abstract Data cooperatives allow their members—the data owners—to pool their digital assets together for processing and access management. In this context, reputation is an important measure of trust, which can effectively complement financial assets in the decentralized scenario, also providing incentives for users’ honest behavior. We present a decentralized data cooperative system based on the Proof-of-Reputation and Proof-of-Stake blockchains. In order to provide inclusivity for low-reputation (newly joined) users, which is required in our community-based scenario, we use the tier-based committee selection introduced by Kleinrock et al. at Indocrypt 2020. As the underlying Proof-of-Stake system, we use Snow White due to its convenient properties such as flexible committee selection and user participation.

Keywords: Blockchain; Data cooperative; Reputation system; Proof-of-Reputation (PoR); Proof-of-Stake (PoS); Reputation fairness (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/978-3-031-18679-0_14

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