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Project Eleven unveils faster quantum-proof for recovering frozen BTC
The proposal targets BIP-361’s plan to freeze quantum vulnerable coins, which could strand more than a third of supply, including about 1.1 million BTC attributed to Satoshi Nakamoto.
CoinDesk reports Project Eleven has developed a new zero-knowledge proof system aimed at enabling recovery of bitcoin that would be locked under BIP-361’s proposed freeze mechanism for quantum vulnerable coins. The approach is designed to let a wallet prove control using its own key derivation path, even as future quantum computers could potentially forge elliptic curve signatures.
The system’s core assumption is that quantum computers can undermine elliptic curve signatures but still cannot reverse the one-way hashing used in modern wallet key derivation. Project Eleven says its prototype runs in 243 milliseconds on a laptop, positioning it as more practical than prior work, though CoinDesk notes it is not yet audited and remains incomplete.
BIP-361, published in April, would block new deposits to vulnerable addresses after three years and then freeze remaining balances after five, potentially stranding coins in more than a third of bitcoin’s supply. CoinDesk adds that this includes roughly 1.1 million BTC attributed to pseudonymous creator Satoshi Nakamoto.
CoinDesk also explains that the plan’s feasibility depends on changes to blockchain rules, and the chain would not be able to distinguish an attacker from the true owner once a theoretical Q-Day is reached. Until then, signatures are expected to rely on elliptic curve cryptography, which the proposal seeks to address through its recovery proof workflow.
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