Bitcom founders, from left, Matt Whitlock, of Weare, and Josh Harvey and Zach Harvey, of Manchester, in Washington, D.C., at the International Students for Liberty Conference in February, with an earlier version of their Bitcoin Machine. (Courtesy)
Bitcoin mining rush means real cash for hardware makers
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The currency, used to buy and sell everything from electronics to illegal drugs on the Web, has surged to about $135, more than 10 times its value a year ago.