A bitcoin holder known on X as @cprkrn has recovered roughly 5 BTC from a wallet that had been inaccessible for more than 11 years. The stash, worth between $400,000 and $500,000 at current prices, was freed using Anthropic's Claude AI — a tool that solved a technical puzzle that had stumped every previous attempt.
The 11-year lockout
The wallet had been unreachable since about 2015, @cprkrn said in posts detailing the recovery. For over a decade, the holder tried various methods to regain access. None worked. The funds sat untouched as bitcoin's price swung wildly — and as the wallet's balance grew more valuable with each cycle.
How Claude AI cracked it
The breakthrough came when @cprkrn turned to Anthropic's Claude AI. The model was fed the technical details of the problem — specifics the holder didn't fully disclose. After some back-and-forth, Claude generated a solution that worked. The holder didn't explain exactly what the AI did, but described the process as something that had resisted all prior human and automated efforts.
What the recovery signals
This case is a rare win in a space where lost or locked wallets are often written off forever. The 5 BTC recovery shows that AI can sometimes brute-force problems that stump even determined owners. It's not a guarantee — most old wallets stay dead — but it's a reminder that creative use of new tools can revive old fortunes.
The holder hasn't said whether they plan to sell or hold the recovered coins. For now, the wallet is back in their control, 11 years later.
