Gyroscopic Investing

In this case, the assets in question are a cache of about one million bitcoins, equivalent to around $64 billion today, belonging to bitcoin’s creator, the pseudonymous Satoshi Nakamoto. The family of the dead man says he and his business partner together were Nakamoto, and thus the family is entitled to half of the fortune.

For bitcoiners, there is only one piece of evidence that could conclusively prove the identity of Satoshi Nakamoto: the private key that controls the account where Nakamoto stored the one million bitcoins. Anyone claiming to be Satoshi Nakamoto could show that he or she has them by moving even a fraction of a coin out of it.