License: Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.Tokenomics.2020.4
URN: urn:nbn:de:0030-drops-135261
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Amoussou-Guenou, Yackolley ; Del Pozzo, Antonella ; Potop-Butucaru, Maria ; Tucci-Piergiovanni, Sara

On Fairness in Committee-Based Blockchains

OASIcs-Tokenomics-2020-4.pdf (0.4 MB)


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.

BibTeX - Entry

  author =	{Yackolley Amoussou-Guenou and Antonella Del Pozzo and Maria Potop-Butucaru and Sara Tucci-Piergiovanni},
  title =	{{On Fairness in Committee-Based Blockchains}},
  booktitle =	{2nd International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2020)},
  pages =	{4:1--4:15},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-157-3},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{82},
  editor =	{Emmanuelle Anceaume and Christophe Bisi\`{e}re and Matthieu Bouvard and Quentin Bramas and Catherine Casamatta},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{},
  URN =		{urn:nbn:de:0030-drops-135261},
  doi =		{10.4230/OASIcs.Tokenomics.2020.4},
  annote =	{Keywords: Blockchain, Consensus, Committee, Fairness, Proof-of-Stake, Reward, Selection}

Keywords: Blockchain, Consensus, Committee, Fairness, Proof-of-Stake, Reward, Selection
Collection: 2nd International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2020)
Issue Date: 2021
Date of publication: 02.02.2021

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