Analyst Downplays Seriousness of Bitcoin’s Quantum Risks
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A recent analysis from on-chain expert James Check is providing a new perspective on the potential risks posed by quantum computing to Bitcoin (BTC). His findings suggest that fears surrounding quantum attacks leading to a market downturn may be overstated.
Check argues that even in extreme scenarios where early Bitcoin coins are compromised and liquidated, the resulting effects would mirror traditional market fluctuations rather than an outright existential threat to Bitcoin’s framework.
The dialogue surrounding the vulnerabilities of Bitcoin in the face of quantum technology has intensified, particularly after Google’s research published in March highlighted the capability of advanced quantum systems to break cryptographic keys within minutes under specific conditions.
Central to this discourse is the figure of 6.9 million BTC associated with exposed public keys. Check contends that this number is often mischaracterized as a unified threat, which may mislead stakeholders about the actual risks involved.
He differentiates this exposure into three distinct categories. Approximately 214,000 BTC is located in Taproot addresses—a newer protocol—suggesting that these asset holders are likely to be active users, ready to shift funds if advancements in quantum security arise. Furthermore, a significant portion of these coins are linked to inscriptions, indicating that a quantum intruder would be attempting to breach cryptography to access digital images alongside a small quantity of Bitcoin.
The bulk of the exposed coins, nearly 4.996 million BTC, is found within reused addresses predominantly owned by exchanges and custodians. Check emphasizes that these institutions bear the responsibility of safeguarding client assets, expressing confidence that platforms like Binance and Coinbase are already developing strategies to combat potential quantum threats.
Check encourages data firms to conduct in-depth risk assessments, anticipating that a thorough analysis will reveal a dramatic reduction in the genuinely high-risk coins once active institutions and current users are accounted for.
What remains, and is deemed the most credible threat, is the 1.716 million BTC held in Satoshi-era Pay-to-Public-Key (P2PK) addresses, which are generally considered to be lost from Bitcoin’s inception.
Addressing the possible market impact of a sale, Check examined the worst-case scenario and assessed whether Bitcoin could absorb such a significant influx of coins. His conclusion, bolstered by various metrics, suggests that the market could indeed handle such stress, potentially more swiftly than anticipated.
His analysis of “revived supply,” which tracks dormant coins returning to circulation, indicates that the market traditionally accommodates between 10,000 to 30,000 BTC daily during bullish trends. Therefore, liquidating all P2PK coins would equate to just 60 to 90 days’ worth of sales.
Check acknowledges that while selling off 1.716 million BTC would indeed have a noticeable negative effect on prices, he firmly denies that it would be catastrophic.
He also supports the proposal from BIP-360 discussions, suggesting a cap on P2PK transactions at one per block. With around 38,000 P2PK outputs, this would allow for a controlled liquidation process over approximately 264 days—aligning with the time needed for others to transition to a quantum-safe framework.
In closing, Check poses a thought-provoking question: if Bitcoin functions best when widely distributed, could the distribution of Satoshi’s coins to buyers, rather than their eternal inaccessibility, truly be the disaster many are portraying it to be?
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