For many people the purpose of cryptocurrencies, like Bitcoin (BTC), has always been a mystery. There is no such thing as a Bitcoin “coin”. It is shown as a coin because that's a useful analogy. But it's an encryption key, one of roughly 21 million answers to an intricate computer puzzle, that can only exist ... from Google Alert - cryptocurrency https://ift.tt/2F5XWiv via IFTTT https://ift.tt/eA8V8J