Blockchain Applications for Industry 4.0 and Industrial IoT: A Review

• Published in: IEEE access Vol. 7; pp. 176935 - 176951
• Main Authors: Alladi, Tejasvi, Chamola, Vinay, Parizi, Reza M., Choo, Kim-Kwang Raymond
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Blockchain; Contracts; Cryptography; Decision making; Domains; Financing; Industrial applications; industrial IoT; Industries; Industry 4.0; industry 40; Internet of Things; Medical services; Peer-to-peer computing; Production; smart contracts
• ISSN: 2169-3536; 2169-3536
• DOI: 10.1109/ACCESS.2019.2956748

The potential of blockchain has been extensively discussed in the literature and media mainly in finance and payment industry. One relatively recent trend is at the enterprise-level, where blockchain serves as the infrastructure for internet security and immutability. Emerging application domains include Industry 4.0 and Industrial Internet of Things (IIoT). Therefore, in this paper, we comprehensively review existing blockchain applications in Industry 4.0 and IIoT settings. Specifically, we present the current research trends in each of the related industrial sectors, as well as successful commercial implementations of blockchain in these relevant sectors. We also discuss industry-specific challenges for the implementation of blockchain in each sector. Further, we present currently open issues in the adoption of the blockchain technology in Industry 4.0 and discuss newer application areas. We hope that our findings pave the way for empowering and facilitating research in this domain, and assist decision-makers in their blockchain adoption and investment in Industry 4.0 and IIoT space.