Every six hours, at his home in the high desert outside Kingman, Arizona, midway between Phoenix and Las Vegas, Brian Goss downloads the latest blocks from the bitcoin blockchain via satellite. He receives the transmission through a dish he installed this January; it arrives with messages, too---tweets, blogs, odes to Satoshi---sent by bitcoiners around the world. Goss rebroadcasts them from a radio device perched on his roof, in case the neighbors care to tune in.

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