Bitcoiner Uses Claude AI to Recover 5 BTC from 2015 Wallet

On May 13, 2026, X user @cprkrn recovered roughly 5 BTC from a wallet that had been inaccessible since about 2014–2015 after using Anthropic’s Claude AI to correct a bug in the btcrecover tool. The coins were tied to address 14VJySbsKraEJbtwk9ivnr1fXs6QuofuE6 and were worth about $400,000 to $500,000 at the time of recovery.

The user reported losing access after changing the wallet password while intoxicated in college. An older mnemonic phrase he retained no longer opened the current wallet file. Over the years he paid about $250 for professional recovery attempts and tried many password combinations without success. He returned to the effort after bitcoin’s price rose, and on May 13 he uploaded the full contents of his old computer — files, notes and backups — into Claude to search for clues.

Claude identified an earlier wallet file that predated the password change and found a mismatch in how the newer wallet processed the password. The problem involved btcrecover, an open-source recovery utility, concatenating a shared key with the password in the wrong order during decryption. Claude corrected the decryption logic, executed the revised process and produced private keys in Wallet Import Format. The keys matched the target address. A screenshot the user posted showed Claude’s output reading: “PRIVATE KEYS DECRYPTED! WE GOT IT!!! THE 5 BTC IS YOURS!”

After Claude produced the keys, the user imported them into a wallet app, which displayed the full 5 BTC balance and pending outbound transactions. The recovered coins had been received on April 1, 2015. The user swept the funds out of the original address the same day the recovery completed.

The X thread drew rapid attention, receiving hundreds of thousands of views and thousands of interactions within hours. Responses from members of the crypto community ranged from praise for the technical rescue to questions about the security implications of uploading old machines and encrypted wallet files to an AI system. The recovery depended on possession of the older mnemonic and the files from the user’s own computer.

Btcrecover is commonly used to recover wallets when passwords are forgotten. In this case Claude’s role was to locate legacy files, diagnose an implementation error and run a corrected decryption process rather than attempt a brute-force attack. The wallet format involved was legacy P2PKH, common before 2015. In follow-up posts the user advised others to “mega dump all of your computers and notebooks into Claude” and summarized the steps as: “Step 1. Download Claude. Step 2. Mega dump all of your information and pray.” He also thanked Anthropic and its CEO, Dario Amodei, joking that he would “name my kid after you.”