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The Internet of Things (IoT) is a name coined to the digital ecosystem of numerous internet connected devices. It brings the physical world closer to the digital one and as a result, allows for new applications and services. The emergence of Blockchain, a distributed ledger technology, presents a possible solution to ensure trust in decentralized systems. Blockchain brings trust, immutability, and verifiability of a distributed ledger in a decentralized network which could be useful to build trust in IoT. However, the integration of IoT with Blockchain involves a number of challenges. The use of Blockchain within the IoT is a recent and a fast paced topic. Therefore, conducting a systematic literature review is essential to understand what has been proposed on the topic. Recent work has provided a systematic review with a focus on Bitcoin. In this paper, we present a systematic review of more recent work on Blockchain and IoT, with a broader focus on Blockchain platforms beyond Bitcoin. Our work provides an overview of what has been done so far on the use of Blockchain and IoT.
Abadi et al. (Sun,) studied this question.
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