Looking for stability in proof-of-stake based consensus mechanisms  

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作  者:Alberto Leporati Lorenzo Rovida 

机构地区:[1]Department of Informatics,Systems and Communication,University of Milano-Bicocca,Viale Sarca 336,Milan 20126,Italy

出  处:《Blockchain(Research and Applications)》2024年第4期41-50,共10页区块链研究(英文)

摘  要:The Proof-of-Stake(PoS)consensus algorithm has been criticized in the literature and in several cryptocurrency communities,due to the so-called compounding effect:who is richer has more coins to stake,therefore a higher probability of being selected as a block validator and obtaining the corresponding rewards,thus becoming even richer.In this paper,we present a PoS simulator written in the Julia language that allows one to test several variants of PoS-based consensus algorithms,tweak their parameters,and observe how the distribution of cryptocurrency coins among users evolves over time.Such a tool can be used to investigate which combinations of parameter values allow to obtain a“fair”and stable consensus algorithm,in which,over the long term,no one gets richer or poorer by the mere act of validating blocks.Based on this investigation,we also introduce a new PoS-based consensus mechanism that allows the system to keep the wealth distribution stable even after a large number of epochs.

关 键 词:Blockchain Proof-of-stake Compounding effect Wealth distribution Tokenomics 

分 类 号:TP3[自动化与计算机技术—计算机科学与技术]

 

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