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Blockchain Technology for Intelligent Environments

1
Department of Informatics, Athens University of Economics and Business, 10434 Athens, Greece
2
Ericsson, 00240 Helsinki, Finland
3
Synelixis Solutions SA, 14343 Athens, Greece
*
Authors to whom correspondence should be addressed.
Future Internet 2019, 11(10), 213; https://doi.org/10.3390/fi11100213
Received: 6 August 2019 / Revised: 22 September 2019 / Accepted: 3 October 2019 / Published: 11 October 2019
(This article belongs to the Collection Featured Reviews of Future Internet Research)
In the last few years, we have been witnessing the convergence of the physical with the digital world. The Internet of Things (IoT) is progressing at a fast pace, and IoT devices are becoming pervasive in our physical environments, bringing the vision of Intelligent Environments closer to reality. At the same time, the newly-introduced blockchain technology is offering for the first time ever cryptographically proven trust based on a set of mutually untrusted nodes. Blockchain technology thus has the potential to become a key component of many IoT systems, offering them an unprecedented level of accountability, transparency, and reliability. This paper first lays out the principles on which blockchain systems are operating, along with descriptions of the most noteworthy blockchain implementations. It then presents a number of systems through which blockchains may interact with external systems and third-party data sources. Finally, it provides a survey of the state-of-the-art blockchain-based systems targeting IoT applications. View Full-Text
Keywords: blockchains; distributed ledger technology (DLT); internet of things (IoT) blockchains; distributed ledger technology (DLT); internet of things (IoT)
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Voulgaris, S.; Fotiou, N.; Siris, V.A.; Polyzos, G.C.; Jaatinen, M.; Oikonomidis, Y. Blockchain Technology for Intelligent Environments. Future Internet 2019, 11, 213.

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