A Bitcoin holder posting as cprkrn on X (Twitter) has successfully recovered 5 BTC from a wallet that was locked for more than 11 years. According to reports from X, the user fed old hard drive files into Anthropic's Claude AI after weeks of failed attempts, with the coins reportedly bought when Bitcoin traded near $250, making the recovered amount worth approximately $397,000 at current prices. At the time of reporting, Bitcoin price was $79,410, demonstrating the significant appreciation in value over the past decade. The wallet, tied to address 14VJySbsKraEJbtwk9ivnr1fXs6QuofuE6, had been inaccessible since roughly 2015. The viral thread generated more than 6 million views as users speculated about AI's potential for password recovery tasks.
The recovery process involved Claude AI locating an encrypted wallet backup file among the uploaded college computer data, then using the widely-used open-source recovery utility btcrecover. As reported by X, the chatbot worked through password logic to find that btcrecover concatenates a sharedKey value with the user password during decryption. The technical problem came down to how the password was being processed - the btcrecover tool was concatenating the shared key with the password in an incorrect order. Claude identified this bug, corrected the decryption logic, ran the process, and extracted the private keys in Wallet Import Format. The recovered keys matched the target address, with Claude's output reading "PRIVATE KEYS DECRYPTED! WE GOT IT!!! THE 5 BTC IS YOURS!" The wallet app screenshot showed an imported legacy P2PKH wallet with the full 5 BTC balance and pending outbound transactions. According to the latest reports, Cprkrn had previously attempted recovery using tools including btcrecover and Hashcat without success before turning to Claude.
The successful recovery demonstrates the growing capabilities of AI in handling specialized cyber and debugging work. According to reports from X, the user had previously paid roughly $250 per failed attempt at commercial recovery services before turning to AI assistance. The case has drawn significant attention, with the recovery post receiving more than 6 million views and approximately 1,900 likes within hours. Castle Island Ventures partner Nic Carter called the result "insane," while crypto journalist Laura Shin and Base creator Jesse Pollak posted similar reactions to the achievement. The recovery has renewed discussion around the growing use of AI for cybersecurity and technical debugging tasks, with crypto users quickly pushing back on claims that Claude "hacked" Bitcoin security.
The recovery highlights the broader challenge of Bitcoin recovery, with Ledger's 2025 guide estimating between 2.3 million and 3.7 million BTC are permanently lost, with some reports placing the figure near 4 million BTC. These losses often come from missing private keys, burned coins, or old wallets that users can no longer access. Bitcoin cannot be reset like a bank password - if a private key is lost, the coins remain onchain but cannot be spent without the right access data. Recovery is only possible when a user later finds a backup, password, seed phrase, or private key. The Claude case shows how AI can help users search old files and understand recovery tools, but it also demonstrates the risk of giving sensitive wallet data to online systems. Security experts warn against uploading wallet files to AI platforms, as it can expose funds and private keys to potential security risks.
