# Blockchain Applications for Industry 4.0 and Industrial IoT: A Review Content type: Research Paper Summary: This review paper examines the integration of blockchain within Industry 4.0 and the Industrial Internet of Things (IIoT), focusing on operational optimization and security in manufacturing environments. The authors explore how blockchain enables traceability, supply chain transparency, and automated industrial workflows, addressing the challenges of data silos and lack of trust between supply chain partners. The paper provides a thorough analysis of how decentralized ledgers can enhance the sec Key concepts: T. Alladi, V. Chamola, R. Parizi, K. R. Choo, industry 4.0, iiot, supply chain, traceability, cyber-physical systems
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Blockchain Applications for Industry 4.0 and Industrial IoT: A Review

T. Alladi, V. Chamola, R. Parizi, K. R. Choo

Academic PaperJanuary 2021

Abstract

This review paper examines the integration of blockchain within Industry 4.0 and the Industrial Internet of Things (IIoT), focusing on operational optimization and security in manufacturing environments. The authors explore how blockchain enables traceability, supply chain transparency, and automated industrial workflows, addressing the challenges of data silos and lack of trust between supply chain partners. The paper provides a thorough analysis of how decentralized ledgers can enhance the security of cyber-physical systems (CPS), particularly in environments that demand high reliability and fault tolerance. By reviewing current prototypes and industrial implementations, the authors demonstrate the potential of DLT to streamline procurement, quality control, and predictive maintenance. The study identifies key technical barriers, including the need for high-throughput chains and integration with existing industrial protocols, while offering a vision for a future where blockchain serves as the backbone for inter-organizational industrial data exchange.

Key Findings

  • 1Blockchain improves supply chain transparency by providing an immutable record of product lifecycle data.
  • 2Integration of DLT in IIoT enhances the security and integrity of cyber-physical system communications.
  • 3Automated industrial workflows are optimized through the use of smart contracts to manage cross-company processes.
  • 4Technical scalability remains the primary challenge for deploying blockchain in high-frequency industrial environments.

Topics

industry 4.0iiotsupply chaintraceabilitycyber-physical systems
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Citation

T. Alladi, V. Chamola, R. Parizi, K. R. Choo (2021). Blockchain Applications for Industry 4.0 and Industrial IoT: A Review. Academic Paper. https://par.nsf.gov/servlets/purl/10193750

BibTeX

@misc{blockchainapplications2021,
  title = {Blockchain Applications for Industry 4.0 and Industrial IoT: A Review},
  author = {T. Alladi and V. Chamola and R. Parizi and K. R. Choo},
  year = {2021},
  howpublished = {\url{https://par.nsf.gov/servlets/purl/10193750}},
}

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