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I would highly recommend this paper to anyone that would like to understand the basics of the underlying technologies that support a blockchain. As far as discussion around blockchain and IoT, the paper was a little sparse. I would recommend it as a good overview of the topic, and perhaps a good resource to find more in-depth papers on blockchain and IoT in the References section.
Kim, M., Hilton, B., Burks, Z. and Reyes, J., Integrating Blockchain, Smart Contract-Tokens, and IoT to Design a Food Traceability Solution, 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), Vancouver, BC, 2018, pp. 335-340. doi: 10.1109/IEMCON.2018.8615007, https://ieeexplore.ieee.org/document/8615007
This paper describes the problem of how data for tracking agricultural data for the food supply chain is not standardized globally and how this creates inefficiencies. The authors propose using IoT sensors to automate logistical data collection, standardizing the tracking data using the GS1 protocol, and recording this information using ERC-721 non-fungible tokens on the Ethereum network. The application interface to the smart contracts is called Harvest Network.
The authors describe the tools and high-level architecture for implementing their solution to the problem. It would have been interesting to get a more detailed case study on one of their implementations, or some "lessons learned" from their implementation in the field. Unfortunately, in Dec 2019, the harvestnetwork.io URL takes you to a blank page, so perhaps the project is no longer active.
The ideas are interesting and some introduction is provided regarding the GS1 protocol and tokenization using ERC-721 Non-Fungible Tokens on the Ethereum network.
Prause, G., & Boevsky, I. (2019). Smart contracts for smart rural supply chains. Bulgarian Journal of Agricultural Science, 25 (No 3), 454-463. Retrieved from https://www.researchgate.net/publication/333798861_Smart_contracts_for_smart_rural_supply_chains | Full text
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