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Article

Combining Blockchains, Smart Contracts, and Complex Sensors Management Platform for Hyper-Connected SmartCities: An IoT Data Marketplace Use Case

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School of Electrical and Computer Engineering, National Technical University of Athens, 15773 Athens, Greece
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Faculty of Environment and Information Studies, Keio University, Endo, Fujisawa 252-0882, Japan
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Electronics and Information Technology Laboratory, Université Grenoble Alpes, CEA, LETI, DSYS, F-38000 Grenoble, France
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CEA, CEA Tech en Occitanie, 51 Rue de l’Innovation, F-31670 Labège, France
*
Author to whom correspondence should be addressed.
Academic Editor: Paolo Bellavista
Computers 2021, 10(10), 133; https://doi.org/10.3390/computers10100133
Received: 7 September 2021 / Revised: 26 September 2021 / Accepted: 12 October 2021 / Published: 16 October 2021
(This article belongs to the Special Issue Edge and Cloud Computing in IoT)
In this paper, we demonstrate the multiple points of innovation when combining blockchain technology with Internet of Things (IoT) and security frameworks. The deployment and use of IoT device networks in smart city environments has produced an enormous amount of data. The fact that those data are possessed by multiple sources that use independent systems for data collection, storage, and use impedes the exploitation of their value. Blockchains, as distributed ledgers, can be used for addressing the development of a universal system for data collection and distribution. Smart contracts can be used to automate all the processes of such a network, while at the same time, blockchain and the InterPlanetary File System (IPFS) protect sensitive data through anonymity and distributed storage. An innovative and open IoT blockchain market of applications, data, and services is proposed that: (i) provides the framework upon which objects and people can exchange value in form of virtual currencies, for assets (data and services) received; (ii) defines the motivation incentives according to social and business context for humans and smart objects to interact. The specific marketplace is piloted through a cross-border trial between Santander and Fujisawa, in the context of the M-Sec project, validating thus the interoperability, efficiency, and data protection principles. View Full-Text
Keywords: blockchain; Ethereum; smart contracts; internet of things; sensing as a service; system integration blockchain; Ethereum; smart contracts; internet of things; sensing as a service; system integration
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MDPI and ACS Style

Palaiokrassas, G.; Skoufis, P.; Voutyras, O.; Kawasaki, T.; Gallissot, M.; Azzabi, R.; Tsuge, A.; Litke, A.; Okoshi, T.; Nakazawa, J.; Varvarigou, T. Combining Blockchains, Smart Contracts, and Complex Sensors Management Platform for Hyper-Connected SmartCities: An IoT Data Marketplace Use Case. Computers 2021, 10, 133. https://doi.org/10.3390/computers10100133

AMA Style

Palaiokrassas G, Skoufis P, Voutyras O, Kawasaki T, Gallissot M, Azzabi R, Tsuge A, Litke A, Okoshi T, Nakazawa J, Varvarigou T. Combining Blockchains, Smart Contracts, and Complex Sensors Management Platform for Hyper-Connected SmartCities: An IoT Data Marketplace Use Case. Computers. 2021; 10(10):133. https://doi.org/10.3390/computers10100133

Chicago/Turabian Style

Palaiokrassas, Georgios, Petros Skoufis, Orfefs Voutyras, Takafumi Kawasaki, Mathieu Gallissot, Radhouene Azzabi, Akira Tsuge, Antonios Litke, Tadashi Okoshi, Jin Nakazawa, and Theodora Varvarigou. 2021. "Combining Blockchains, Smart Contracts, and Complex Sensors Management Platform for Hyper-Connected SmartCities: An IoT Data Marketplace Use Case" Computers 10, no. 10: 133. https://doi.org/10.3390/computers10100133

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