throwaway7722

Well, only if the transmission is signed & trusted. Otherwise, an attacker could just spoof a payment by transmitting a modified blockchain close to the payment terminal.

As noted in the article (under the "technology" page), signing is planned but not yet implemented.

Also, things like DVB tuners are not exactly cheap enough to be integrated into many devices (though FM receivers, which may be used in the future, are).

What kind of devices are you thinking of? It seems to me that the most useful applications of this system would be for vending machines. A $10 DVB-T demodulator (at scale they can be had much cheaper than that) is a rounding error in the cost of those devices.

So the regulators have to use the provided virtual machine and tools to build the source, and verify that the resulting binary is the same as provided by your company?

How do they confirm that the toolchain has not been messed with? Surely they can't binary-check the whole OS/compiler/linker/other software in the VM?