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This paper would be a useful resource to anyone looking for a more concrete discussion of the unique problems that arise from using a blockchain-based supply chain.
Christidis, K., Devetsikotis, M. (2016 May). Blockchains and Smart Contracts for the Internet of Things. IEEE Access, https://ieeexplore.ieee.org/abstract/document/7467408 | Full Text
This paper starts off with one of the better high-level overviews of blockchain technology that I have read. The authors provide a great explanation of the basics around networking, protocols, smart contracts, and more. Following this overview, they discuss the benefits and challenges of using blockchain alongside IoT technology. A few real world examples are discussed such as Stock.it, a company that allows users to control access to a smart lock by paying in Ether. The last section of the paper discusses some important deployment considerations that any administers of a blockchain network should consider.
As of Nov 2019 this paper was one of the most cited articles on the topic of Smart Contracts on Google Scholar. Both authors are also highly reliable - Christidis is a co-creator of Hyperledger Fabric, and Devetsikiotis is Department Chair of Electrical and Computer Engineering the University of New Mexico with numerous publications related to IoT.
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 in the References section.
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