As you probably know, dear reader, the crypto-currency Bitcoin, the first and so far most successful of the world's crypto-currencies, is generally described as the invention of one Satoshi Nakamoto. And that name is generally understood as a pseudonym for a more shadowy person or group. About the actual identity of whom a variety of theories have bloomed. Why care? Other than the possibility that you love a recent-history puzzle, you might care because whoever that person is, or whoever they are, "Satoshi" holds a heck of a large cache of personal bitcoins. If he sold them in a single blow, he'd render the currency near worthless. His cache is called the Tulip Trust, and it consists of 1.1 million bitcoins. A few months ago (December 2015) a couple of magazines simultaneously and independently declared that they knew who Satoshi was/is. Their accounts differed in some details but had a lot of overlap. Wired and Gizmodo both said that bitcoin was the creatio...