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Sensors 2016, 16(6), 776;

Reputation and Reward: Two Sides of the Same Bitcoin

Departament d’Enginyeria de la Informació i les Comunicacions, Universitat Autònoma de Barcelona, Bellaterra, Barcelona 08193, Spain
Author to whom correspondence should be addressed.
Academic Editor: Rongxing Lu
Received: 11 April 2016 / Revised: 9 May 2016 / Accepted: 20 May 2016 / Published: 27 May 2016
(This article belongs to the Special Issue Security and Privacy in Sensor Networks)
Full-Text   |   PDF [440 KB, uploaded 27 May 2016]   |  


In Mobile Crowd Sensing (MCS), the power of the crowd, jointly with the sensing capabilities of the smartphones they wear, provides a new paradigm for data sensing. Scenarios involving user behavior or those that rely on user mobility are examples where standard sensor networks may not be suitable, and MCS provides an interesting solution. However, including human participation in sensing tasks presents numerous and unique research challenges. In this paper, we analyze three of the most important: user participation, data sensing quality and user anonymity. We tackle the three as a whole, since all of them are strongly correlated. As a result, we present PaySense, a general framework that incentivizes user participation and provides a mechanism to validate the quality of collected data based on the users’ reputation. All such features are performed in a privacy-preserving way by using the Bitcoin cryptocurrency. Rather than a theoretical one, our framework has been implemented, and it is ready to be deployed and complement any existing MCS system. View Full-Text
Keywords: mobile crowd sensing; cryptocurrencies; reputation systems; privacy; bitcoin mobile crowd sensing; cryptocurrencies; reputation systems; privacy; bitcoin

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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 (CC BY 4.0).

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Delgado-Segura, S.; Tanas, C.; Herrera-Joancomartí, J. Reputation and Reward: Two Sides of the Same Bitcoin. Sensors 2016, 16, 776.

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