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Unresolved issues for integrating blockchain with IoT and fog systems

Identify and resolve scalability, storage overhead, privacy, and consensus efficiency challenges to enable resource‑aware, secure integration of blockchain with fog/edge and Internet‑of‑Things architectures.

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Background

The paper surveys blockchain adoption for data integrity and security in fog/edge‑supported IoT, noting constraints such as device resource limits, storage growth, privacy gaps, and consensus overheads.

It explicitly states that significant issues remain unresolved for effective, scalable blockchain integration with IoT and fog systems.

References

There are still numerous unresolved issues and potential future developments for blockchains in IoT architectures.

— Modern Computing: Vision and Challenges (2401.02469 - Gill et al., 4 Jan 2024) in Section 4.4 (Decentralized Computing → Technologies/Impact Areas) — Distributed Ledger Technology (Blockchain)