A new project that transmits bitcoin payments over the radio is up and running in Finland – and it’s also transmitting a national Finnish cryptocurrency at the same time. Kryptoradio is a data transmission protocol designed to transmit low-bandwidth information over one-way digital broadcast networks.

Joel Lehtonen, the project’s founder, said he is focused on using Kryptoradio to transmit block chain information. The project is currently halfway through a two-month test pilot phase in conjunction with Finnish broadcaster Digita, which allows the system to transmit bitcoin transaction information across its digital radio network.

The project transmits the data over the DVB-T network, which is a digital audio and video broadcast network used by TV and radio broadcasters around the world. Kryptoradio’s back-end computers connect to the block chain and turn the latest block’s transactions into a data stream. This is then broadcast over the network, where it can be picked up by a Linux computer connected to a DVB-T receiver at the other end.

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But why do any of this? Tuomo Sipola, who works with Lehtonen at a technology co-operative called Koodilehto, explained that one-way bitcoin block chain broadcasts offer a mixture of robustness and reachability. It’s useful for anyone taking bitcoin payments, he suggested, as they don’t need a constant Internet connection.

Sipola said: “Its a unidirectional technology, so the person who is selling something needs only to receive the payment information. Receiving a broadcast, you just listen to it. You don’t have to subscribe to some mobile plan.” Where and how would this be useful? One possible use case could be vending machines, which sell everything from chocolate bars to laundry cycles.

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If you own a vending machine and want it to accept bitcoin, but don’t want to pay for a mobile Internet connection and associated modem, all you would need with Kryptoradio is a low-cost integrated DBV-T receiver and a pared-down Linux hardware subsystem.

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