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Mobile Information Systems
Volume 2018 (2018), Article ID 2159082, 16 pages
https://doi.org/10.1155/2018/2159082
Review Article

Cryptocurrency Networks: A New P2P Paradigm

Department d’Enginyeria de la Informació i les Comunicacions, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain

Correspondence should be addressed to Cristina Pérez-Solà; tac.bau@zerep.anitsirc

Received 18 May 2017; Accepted 3 December 2017; Published 1 March 2018

Academic Editor: L. J. García Villalba

Copyright © 2018 Sergi Delgado-Segura et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

P2P networks are the mechanism used by cryptocurrencies to disseminate system information while keeping the whole system as much decentralized as possible. Cryptocurrency P2P networks have new characteristics that propose new challenges and avoid some problems of existing P2P networks. By characterizing the most relevant cryptocurrency network, Bitcoin, we provide details on different properties of cryptocurrency networks and their similarities and differences with standard P2P network paradigms. Our study allows us to conclude that cryptocurrency networks present a new paradigm of P2P networks due to the mechanisms they use to achieve high resilience and security. With this new paradigm, interesting research lines can be further developed, both in the focused field of P2P cryptocurrency networks and also when such networks are combined with other distributed scenarios.