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A Bitcoin holder who lost access to his crypto wallet more than a decade ago says he finally recovered nearly $400,000 worth of Bitcoin with help from Anthropic’s AI chatbot Claude.
The user, posting on X under the handle cprkrn, said he originally locked himself out of the wallet after changing the password while high more than 11 years ago and then forgetting it entirely. After recently uncovering an old mnemonic phrase connected to the account, he turned to Claude for help by feeding the AI years of archived files from his old compute.
Claude reportedly identified a forgotten wallet backup file dating back to 2019 that contained critical private key information linked to a Blockchain.com wallet holding 5 Bitcoin. The coins had originally been purchased in 2015 when Bitcoin traded around $250 and had remained untouched for years.
The owner had previously spent years attempting to brute-force the password using the open-source recovery tool btcrecover, testing what he described as trillions of possible combinations. Despite the massive effort, the attempts failed because of a configuration issue that prevented key data from being combined correctly during the recovery process.
Claude eventually identified the problem after matching the mnemonic phrase to one specific wallet file and locating an older backup. The AI then spotted a bug in the password configuration logic, allowing the wallet to finally be decrypted once corrected.
The story stands out at a time when most headlines surrounding generative AI focus on concerns over misinformation, copyright disputes, job displacement, or software failures. In this case, the AI functioned more like an advanced digital forensic assistant, helping reconstruct fragmented technical information spread across years of old files and backups.
The incident also highlights one of Bitcoin’s oldest problems: lost access. Because cryptocurrencies are decentralized and self-custodied, forgotten passwords and missing private keys can permanently lock owners out of fortunes worth millions or even billions of dollars.
One of the most famous examples remains British IT worker James Howells, who accidentally discarded a hard drive containing 8,000 Bitcoin. The stash is now worth hundreds of millions of dollars, but legal rulings have repeatedly blocked attempts to excavate the landfill where the drive is believed to be buried.