A group of developers claim to have performed a solar-powered cryptocurrency transaction, using shortwave radios and blockchain tech. While it might not be the world’s first radio-transmitted cryptocurrency transaction, the devs insist it is the first one to be completed entirely off-grid. They managed to do it with just a portable hard drive, a solar battery pack, a shortwave radio, and, of course, some technical know-how. In addition to these gadgets, the developers used open-source cryptocurrency Burst to conduct the experiment. For the record, the transaction was recorded on Burst’s blockchain without the need for any mains power or data…

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