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FILE PHOTO: Some of Bitcoin enthusiast Mike Caldwell’s coins in
FILE PHOTO: Some of Bitcoin enthusiast Mike Caldwell’s coins in this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart/File Photo
FILE PHOTO: Some of Bitcoin enthusiast Mike Caldwell’s coins in this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart/File Photo