1. On Fairness in Committee-Based Blockchains
- Author
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Amoussou-Guenou, Yackolley, Del Pozzo, Antonella, Potop-Butucaru, Maria, Tucci-Piergiovanni, Sara, Département Ingénierie Logiciels et Systèmes (DILS), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Networks and Performance Analysis (NPA), LIP6, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratory of Information, Network and Communication Sciences (LINCS), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut Mines-Télécom [Paris] (IMT)-Sorbonne Université (SU), CEA- Saclay (CEA), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
- Subjects
FOS: Computer and information sciences ,Consensus ,Fairness ,Committee ,Blockchain ,Proof-of-Stake ,Computer Science - Distributed, Parallel, and Cluster Computing ,Reward ,2012 ACM Subject Classification Computer systems organization → Dependable and fault-tolerant systems and networks phrases Blockchain Consensus Committee Fairness Proof-of-Stake Reward Selection Digital Object Identifier 10.4230/OASIcs.Tokenomics.2020.4 ,Computer systems organization → Dependable and fault-tolerant systems and networks ,[INFO]Computer Science [cs] ,Distributed, Parallel, and Cluster Computing (cs.DC) ,[INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC] ,Selection - Abstract
Committee-based blockchains are among the most popular alternatives of proof-of-work based blockchains, such as Bitcoin. They provide strong consistency (no fork) under classical assumptions, and avoid using energy-consuming mechanisms to add new blocks in the blockchain. For each block, these blockchains use a committee that executes Byzantine-fault tolerant distributed consensus to decide the next block they will add in the blockchain. Unlike Bitcoin, where there is only one creator per block, in committee-based blockchain any block is cooperatively created. In order to incentivize committee members to participate in the creation of new blocks, rewarding schemes have to be designed. In this paper, we study the fairness of rewarding in committee-based blockchains and we provide necessary and sufficient conditions on the system communication under which it is possible to have a fair reward mechanism., OASIcs, Vol. 82, 2nd International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2020), pages 4:1-4:15
- Published
- 2021
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