Virtual fur flies as ‘CryptoKitties’ collar blockchain

Never mind Bitcoin mania taking the doyen of virtual currencies into the stratosphere. The real online craze to get with right now is to breed virtual cats. Net-based cousins of the Tamagotchi digital pet launched in Japan 20 years ago, “CryptoKitties” are wowing owners of Ethereum, one of Bitcoin’s main rivals. With some 50,000 sold for…