Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Multi-Billion Dollar Software Supply Chain of Ethereum   The rise of blockchain technologies has triggered tremendous research
interests, coding efforts, and monetary investments in the last decade.
Ethereum is the largest programmable blockchain platform today. It features
cryptocurrency trading, digital art, and decentralized finance through smart
contracts. So-called Ethereum nodes operate the blockchain, relying on a vast
supply chain of third-party software dependencies maintained by diverse
organizations. These software suppliers have a direct impact on the reliability
and the security of Ethereum. In this article, we perform the first analysis of
the software supply chain of Java Ethereum nodes and distill the challenges of
maintaining and securing the Ethereum supply chain.

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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th