文章基本信息

标题：Decentralization in Open Quorum Systems: Limitative Results for Ripple and Stellar
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作者：Andrea Bracciali ; Davide Grossi ; Ronald de Haan 等
期刊名称：OASIcs : OpenAccess Series in Informatics
电子版ISSN：2190-6807
出版年度：2021
卷号：82
页码：5:1-5:20
DOI：10.4230/OASIcs.Tokenomics.2020.5
出版社：Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik
摘要：Decentralisation is one of the promises introduced by blockchain technologies: fair and secure interaction amongst peers with no dominant positions, single points of failure or censorship. Decentralisation, however, appears difficult to be formally defined, possibly a continuum property of systems that can be more or less decentralised, or can tend to decentralisation in their lifetime. In this paper we focus on decentralisation in quorum-based approaches to open (permissionless) consensus as illustrated in influential protocols such as the Ripple and Stellar protocols. Drawing from game theory and computational complexity, we establish limiting results concerning the decentralisation vs. safety trade-off in Ripple and Stellar, and we propose a novel methodology to formalise and quantitatively analyse decentralisation in this type of blockchains.
关键词：Blockchain; decentralization; game theory; computational complexity