Cardano's Charles Hoskinson Claims Bitcoin's Quantum Solution is a Hard Fork that Fails to Protect Satoshi's Coins

Earlier this week, Bitcoin's core developers put forth a proposal to freeze 8 million coins as a defense mechanism against quantum attacks. However, Charles Hoskinson, the founder of Cardano, expressed his skepticism regarding the ability of this solution to protect the coins belonging to Satoshi Nakamoto, the pseudonymous creator of the network, in a video posted on his YouTube channel. Hoskinson stated that the proposed defense against quantum computers is both technically misclassified and structurally incapable of safeguarding the network's oldest coins, including the roughly 1 million bitcoin attributed to Satoshi Nakamoto. He argued that the proposal, BIP-361, which aims to phase out quantum-vulnerable bitcoin addresses, is being misrepresented as a soft fork when it would actually require a hard fork due to its invalidation of existing signature schemes that users are actively relying on. Hoskinson emphasized that a hard fork is necessary to implement this change, which is a significant distinction given Bitcoin's historical opposition to hard forks due to their perceived violation of the network's immutability. The authors of BIP-361 have described the proposal as a soft fork, a characterization that Hoskinson disputes. A soft fork tightens the rules, allowing old software to continue functioning but without access to new features, whereas a hard fork fundamentally alters the rules, causing old software to cease working entirely and potentially resulting in a network split unless all users upgrade. The proposal suggests that users with frozen quantum-vulnerable funds could reclaim them by constructing a zero-knowledge proof tied to their BIP-39 seed phrase, a standard for generating wallet keys from a recoverable phrase. Nonetheless, Hoskinson argued that this approach is incapable of rescuing approximately 1.7 million bitcoin that predate the introduction of BIP-39 in 2013, including the roughly 1 million coins associated with Satoshi's early mining activity. These early coins were generated using a different key derivation method from the original Bitcoin wallet software, which relied on a local key pool rather than a deterministic seed. If the proposal is adopted in its current form, those coins would remain permanently frozen regardless of whether their original owners attempt to migrate, as migration would require cryptographic proof that they are unable to provide. Jameson Lopp, the core developer who co-authored BIP-361, acknowledged that he does not favor the proposal and hopes it never needs to be adopted, describing it as a rough idea for a contingency plan rather than a finalized specification. Lopp has argued that freezing dormant coins, which he estimates at 5.6 million bitcoin, would be preferable to allowing a future quantum attacker to recover and dump them on the market. Hoskinson's broader critique extends beyond the technical details, arguing that Bitcoin's lack of formal on-chain governance leaves the network unable to resolve these tradeoffs through a structured process, forcing contentious upgrades to be negotiated through developer mailing lists and social pressure.