A developer has claimed that a new CUDA-powered tool could recover 8,999 Bitcoin (BTC) lost in 2010 by a user known as "Stone Man," potentially reclaiming a fortune now worth approximately $688 million. According to BeInCrypto, the Bitcoin address has remained inactive for nearly 16 years, and a successful recovery would be among the largest ever recorded. The tool exploits weak entropy in early Bitcoin client keys, using GPU hardware to accelerate calculations. If successful, this method could impact the recovery of roughly 4 million BTC stranded in lost wallets.