Community Cash: A Community-Based Cryptocurrency for Implementing Activity-Based Micro-Pricing

  • Kosuke KomiyaEmail author
  • Tatsuo Nakajima
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11911)


In this paper, we propose a new local economic infrastructure—“community cash”—based on blockchain and activity-based micro-pricing technologies. Blockchain technology, introduced by Satoshi Nakamoto in Bitcoin: A Peer-to-Peer Electronic Cash System [1] in 2009, has had a serious impact on the virtual economy. It has realized peer-to-peer digital data transfer without the trust of third parties. On the other hand, activity-based micro-pricing alters user behavior through economic incentives. By combining these technologies, we develop a blockchain that runs on a new consensus algorithm, proof-of-contribution. This consensus algorithm alters the behaviors of the members in a community by distributing rewards for generating blocks as monetary incentives. We first introduce the system of “community cash,” and then discuss future works that can be implemented in the proposed infrastructure as well as remaining problems to be solved.


Blockchain Economic infrastructure Activity-based micro-pricing 


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringWaseda UniversityTokyoJapan

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