A new quantum-resilient proof from Project Eleven lets Bitcoin holders reclaim old coins using just a seed phrase — and it runs 16 times faster than before. The tool, which clocks in at 243 milliseconds on a laptop, could change the debate around freezing vulnerable wallets. But it also raises a hard question: who gets their coins back, and who doesn't?
How the proof works
The proof builds on the concept of 'signature lifting' developed by Sattath and Wyborski in 2023, with a first prototype by Lightning Labs CTO Olaoluwa Osuntokun. Project Eleven's new version is 16 times faster, completing the operation in 243 milliseconds on a standard laptop. It works only with wallets that use the BIP-32 seed phrase system, introduced in 2012. Older wallets without a master key — including Satoshi Nakamoto's roughly 1.1 million BTC spread across about 22,000 addresses — cannot use it. Those coins expose their public keys on-chain and were created before seed phrases existed, making them vulnerable to quantum attacks.
The freeze debate heats up
Binance co-founder CZ has previously suggested freezing Satoshi's coins after a quantum breakthrough. Critics called that confiscation. BIP-361, co-authored by Jameson Lopp, would switch off Bitcoin's old signature system over several years, effectively freezing unmoved coins forever. Project Eleven's proof directly addresses the main objection to a freeze: that it would take coins away with no path back. If a holder has a seed phrase, this tool offers a way to reclaim them without revealing the master key.
What's still missing
The tool is unaudited. It covers three older address types, and no blockchain has accepted it yet. Meanwhile, the quantum threat is accelerating. Google's quantum research this year cut the hardware needed for attacks by 20 times. US agencies face post-quantum cryptography deadlines by 2031. The gap between a working proof and a production-ready solution remains wide.
The governance question
If a freeze ever comes, the fight will be over which coins ever come back. Satoshi's stash is the biggest target, but thousands of other old wallets are also exposed. The tool gives a technical answer for seed-phrase holders, but the political answer is still unwritten. For now, Project Eleven's proof exists as a concept. The real test will come when a blockchain decides to accept it — or when regulators force a choice.
