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Open AccessJournal ArticleDOI

Blockchains and Smart Contracts for the Internet of Things

TLDR
The conclusion is that the blockchain-IoT combination is powerful and can cause significant transformations across several industries, paving the way for new business models and novel, distributed applications.
Abstract
Motivated by the recent explosion of interest around blockchains, we examine whether they make a good fit for the Internet of Things (IoT) sector. Blockchains allow us to have a distributed peer-to-peer network where non-trusting members can interact with each other without a trusted intermediary, in a verifiable manner. We review how this mechanism works and also look into smart contracts—scripts that reside on the blockchain that allow for the automation of multi-step processes. We then move into the IoT domain, and describe how a blockchain-IoT combination: 1) facilitates the sharing of services and resources leading to the creation of a marketplace of services between devices and 2) allows us to automate in a cryptographically verifiable manner several existing, time-consuming workflows. We also point out certain issues that should be considered before the deployment of a blockchain network in an IoT setting: from transactional privacy to the expected value of the digitized assets traded on the network. Wherever applicable, we identify solutions and workarounds. Our conclusion is that the blockchain-IoT combination is powerful and can cause significant transformations across several industries, paving the way for new business models and novel, distributed applications.

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Citations
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Journal ArticleDOI

Integrating blockchain technology into the energy sector — from theory of blockchain to research and application of energy blockchain

TL;DR: It is contended that blockchain may be fueling the renewable energy and powering the authors' energy sustainability, and the possible future development trend of energy blockchain is offered.
Journal ArticleDOI

Blockchains for Supply Chain Management: Architectural Elements and Challenges Towards a Global Scale Deployment

TL;DR: The paper provides, through its methodology, a detailed analysis of the blockchain fit in the supply chain industry, and defines the specific elements of blockchain that affect supply chain such as scalability, performance, consensus mechanism, privacy considerations, location proof and cost.
Journal ArticleDOI

Cooperative and Distributed Computation Offloading for Blockchain-Empowered Industrial Internet of Things

TL;DR: This paper proposes a multihop cooperative and distributed computation offloading algorithm that considers the data processing tasks and the mining tasks together for blockchain-empowered IIoT and designs an efficient distributed algorithm based on exchanging messages betweenIIoT devices to achieve the NE with low computational complexity.
Patent

Use of blockchain based distributed consensus control

TL;DR: In this paper, the authors propose a system for the control of devices comprising, connected to or remotely operating devices in an electrically powered network and the transaction of the benefits, costs or value created by or transacted through the devices in this network.
Posted Content

A Survey on Consensus Mechanisms and Mining Management in Blockchain Networks

TL;DR: This survey is motivated by the lack of a comprehensive literature review on the development of decentralized consensus mechanisms in blockchain networks and provides a comprehensive survey on the emerging applications of the blockchain networks in a wide range of areas.
References
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