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Re:Kryptoradio – A Bitcoin data transmission system by pronoiac on Saturday July 12, 2014 @12:02PM (#8024877)
Say the blockchain's growing by a gigabyte a month.[1] I don't think SMS can support that much, especially times so many devices. Using a tv signal is more robust - you can support millions of devices, and transient 3G network failures will have less or no effect.

[1] I estimated. http://blockchain.info/charts/blocks-size

Re:Kryptoradio – A Bitcoin data transmission system by nawitus on Saturday July 12, 2014 @12:32PM (#8024980)
But the parking meter (etc.) doesn't need to handle the blockchain at all. It could use the SMS to communicate with a shared parking meter bitcoin transaction server. That said, broadcasting the blockchain is useful.
Re:Kryptoradio – A Bitcoin data transmission system by zouppen on Saturday July 12, 2014 @04:14PM (#8025672)
If you stick to centralized solution then that would work nice and might be good enough. However Kryptoradio allows to do it by just listening incoming transactions and blocks.