Some workers in low-income countries are choosing bitcoin, a virtual currency powered by blockchain technology, to send money to their families. It's cheaper, faster and doesn't require a middleman.
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Entrepreneur Craig Wright says he is the creator of the bitcoin crypto-currency. In this 2014 file photo, a man arrives for the Inside Bitcoins conference and trade show in New York.
A bow and an apology: Mark Karpeles, CEO of Mt. Gox, was contrite at the start of a news conference in Tokyo on Friday in which it was announced that the firm has filed for bankruptcy.