TREE NEWS reports: Ethereum contracts can already verify alternative signatures, but securing existing accounts requires more than adding a new signer, while Bitcoin’s P2MR proposal does not itself introduce post-quantum signatures. The two networks are taking different technical routes toward wallets resistant to quantum attacks, with Ethereum facing the challenge of migrating already-active accounts and Bitcoin’s proposal stopping short of adding quantum-safe signing.
Bitcoin, Ethereum diverge on post-quantum wallet migration paths
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AI take
The divergence matters less as a race than as a reminder that quantum resistance is a wallet-migration problem, not a signature-algorithm problem. Ethereum's ability to verify alternative signatures on contracts does not solve the harder issue of securing accounts that already hold value and permissions, while Bitcoin's P2MR stops short of quantum-safe signing altogether. Both paths leave existing users and account holders facing the harder operational question. Whether either proposal matures into a workable migration route, rather than a partial technical fix, is the open question worth watching.
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