Understanding the Quantum Threat to Satoshi Nakamoto’s Bitcoin Holdings
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Addressing the Quantum Threat to Bitcoin: The Hourglass V2 Proposal
The looming quantum threat to Bitcoin, particularly Satoshi Nakamoto’s vast holdings, has become a pressing concern. Bitcoin developer Hunter Beast has introduced the Hourglass V2 proposal, a strategic initiative aimed at mitigating potential sell pressure from stolen Bitcoin. This proposal has sparked significant discussions on the best strategies to manage Satoshi’s Bitcoin supply.
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Proposed Solution for Managing Satoshi Nakamoto’s Bitcoin
The Hourglass V2 proposal by Beast is designed to limit the Pay-to-Public-Key (P2PK) outputs to 1 BTC per block. Satoshi Nakamoto’s Bitcoin stash, approximately 1.1 million BTC, is held in a P2PK address, which exposes the public key and heightens vulnerability to quantum attacks.
Research from Chainalysis estimates that about $718 billion in Bitcoin is at risk due to quantum vulnerabilities. This includes the P2PK addresses, which, if compromised by quantum attackers, could result in a significant supply shock for Bitcoin.
The Hourglass proposal seeks to minimize market disruption by offering a balanced approach between freezing and burning Satoshi Nakamoto’s coins. However, burning or freezing these coins might be perceived as confiscatory, potentially setting a concerning precedent for altering Bitcoin’s monetary policy.
If implemented, the proposal will restrict P2PK outputs to a single transaction input per block. Additionally, it will prevent the creation of new P2PK outputs from other transaction types and any address not currently being spent from. Nonetheless, this proposal currently applies solely to P2PK addresses, leaving other quantum-vulnerable outputs at risk. Applying similar restrictions to these outputs could hinder the transition to quantum-resistant Bitcoin addresses, as they remain widely used.
The Motivation Behind the Proposal
The Hourglass V2 aims to limit P2PK output to roughly 144 BTC daily. According to Beast, this restriction would significantly mitigate the market impact of quantum attacks on P2PK coins, preventing attackers from flooding the market with Bitcoin.
Without these restrictions, over 6,000 P2PK transactions could be processed per block, potentially releasing over 300,000 BTC to the market in a single block. Such a scenario could result in all P2PK coins, including Satoshi Nakamoto’s, being spent within hours.
Conversely, if the Hourglass V2 rules are applied, it would take more than 32 years to exhaust all P2PK coins, substantially reducing quantum-related market risks. Notably, original keyholders like Satoshi Nakamoto would still be able to move their coins, provided no quantum adversaries are competing for P2PK transactions.
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