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the claim
Bitcoin uses proof of work to validate transactions.
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SUPPORTED
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9 sources for · 0 against
Is it true that Bitcoin uses proof of work to validate transactions?
Yes. A reference encyclopedia entry and a peer-reviewed comparative study both state that Bitcoin's blockchain reaches consensus and validates transactions through proof of work, and a peer-reviewed paper adds that proof-of-work miners solve problems to validate transactions.
Verdict: SUPPORTED · 9 sources for, 0 against · Last checked
Evidence for · 9
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Bitcoin. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Bitcoin
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More for · 8
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Bazzanella, D. & Gangemi, A. (2023). Bitcoin: a new proof-of-work system with reduced variance. doi.org. https://doi.org/10.1186/s40854-023-00505-2
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Cooper, Z. G. T. (2021). THE DEEP TIME OF BITCOIN: EXCAVATING THE "WORK" IN PROOF-OF-WORK CRYPTOCURRENCY SYSTEMS. doi.org. https://doi.org/10.5210/spir.v2021i0.11887
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Protecting Early Stage Proof-of-Work Based Public Blockchain. (2018). doi.org. https://doi.org/10.1109/dsn-w.2018.00050
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Shorting attack: Predatory, destructive short selling on Proof‐of‐Stake cryptocurrencies. (2021). doi.org. https://doi.org/10.1002/cpe.6585
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Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of Filing of a Proposed Rule Change To List and Trade Shares of the Invesco Galaxy Solana ETF Under BZX Rule 14.11(e)(4), Commodity-Based Trust Shares. (2025). federalregister.gov. https://www.federalregister.gov/documents/2025/08/18/2025-15621/self-regulatory-organizations-cboe-bzx-exchange-inc-notice-of-filing-of-a-proposed-rule-change-to
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Consensus algorithms in blockchain technology: A comparative study. (2022). doi.org. https://doi.org/10.5958/2278-4853.2022.00238.5
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Self-Regulatory Organizations; The Nasdaq Stock Market LLC; Notice of Filing of Proposed Rule Change To List and Trade Shares of 21Shares SUI ETF Under Nasdaq Rule 5711(d) (Commodity-Based Trust Shares). (2025). federalregister.gov. https://www.federalregister.gov/documents/2025/06/10/2025-10441/self-regulatory-organizations-the-nasdaq-stock-market-llc-notice-of-filing-of-proposed-rule-change
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Investing in Cryptocurrencies and Digital Assets: A Guide to Understanding Technologies, Business Models, Due Diligence, and Valuation. (2024). ebookcentral.proquest.com. https://ebookcentral.proquest.com/lib/kxp/detail.action?docID=31702030
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