Out in the cryptosphere, there's a vast amount of wealth that's seemingly out of reach.
A long-running statistic suggests four million Bitcoin — almost 20% of the total supply — has been lost forever. Much of it was mined when the network was just beginning, with early adopters tearing their hair out after losing their private keys. One Welshman has endured a nine-year battle as he attempts to receive a hard drive containing 7,500 BTC from landfill.
Learn more about KeychainX