Production Of Bitcoins By Mike Caldwell of Casascius

A pile of Bitcoins that were just made are arranged for a photograph in Sandy, Utah, U.S., on Friday, April 12, 2013. Created four years ago by a person or group using the name Satoshi Nakamoto, Bitcoin is a virtual currency that can be used to buy and sell a broad range of items — from cupcakes to electronics to illegal narcotics. Photographer: George Frey/Bloomberg via Getty Images

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