Governments restricting access to Bitcoin through the internet would be pretty difficult enough; unless they shut down the entire internet.
Nah, just censor everything. It's not an internet anymore, but you can provide them the basics, such as the government's website, Facebook, YouTube etc. You can restrict their freedom if you're a government, but it just pointless in the long-term. For how long will you violate their rights? People have provably shown they find a way. (e.g., Bitcoin) 
Topic: Sending Bitcoin through radio waves? - page 2. (Read 321 times)
As said correctly by ranochigo, it's impractical to use radio waves for anything beyond the block headers. So while you can send bitcoins this way, you can't have the necessary proof that the bitcoins have been sent, the transaction has been confirmed etc.
If they can do it by satellite, they can most certainly do it by radio.
As long as you can broadcast the necessary information to complete a transaction, you can transact bitcoin in just about any way. Hell, if there was a server designed to listen for bitcoin transactions using morse code, and you could input all of the necessary information, you could theoretically transact this way.
As long as you can broadcast the necessary information to complete a transaction, you can transact bitcoin in just about any way. Hell, if there was a server designed to listen for bitcoin transactions using morse code, and you could input all of the necessary information, you could theoretically transact this way.
Satellite used by internet providers like starlink uses radiowaves to transmit information to their users. Starlink's bandwidth is sufficiently fast for Bitcoin nodes to operate so it would be perfectly feasible to run Bitcoin nodes using a constellation of satellite.
It might not be feasible for HAM radios to be used, unless you are talking about transmitting transaction data only (ie. SPV and block headers only). Depending on your setup, your bandwidth might be excessively low for anything like that to be feasible.
It might not be feasible for HAM radios to be used, unless you are talking about transmitting transaction data only (ie. SPV and block headers only). Depending on your setup, your bandwidth might be excessively low for anything like that to be feasible.
At least, on a local level I'd think that the radio would be able to be controlled through jammers etc more than the internet would be. The thing is the entire world currently relies on the internet, and every day be start to rely on it more. Despite this fact, it wouldn't be easy to restrict peoples usage of the internet, its been tried, and you could probably say China has to some degree been successful in blocking certain types of content, though its so easily to bypass that for anyone who wants to, they could even without any technical knowledge.
Governments restricting access to Bitcoin through the internet would be pretty difficult enough; unless they shut down the entire internet.
Even then it would probably be pretty difficult to assure that the internet is completely shut down. 
I think that would be very possible, as at the basics the bitcoin protocol doesn't rely on internet protocol as ip or dns too much, nodes are not strongly identified, and the bitcoin protocol itself contain all the data to identify users with the public key.
Some scheme like elligator ( https://elligator.cr.yp.to/ ) could be used to make the signal very stealth if it doesn't collision with other used signal on the same radio band.
But it would probably needs lot of relaying nodes in the way to make it viable on long distance, but for let say cities or denely populated place could not be a problem, and some few nodes could bridge via internet or sattelite for long range communication. As bitcoin protocol is already resistant to middle man attacks and such i don't see why this shouldn't be possible.
If you need to mine that would probably be very limited though. But for things like SPV or non mining nodes, i think that could be very possible.
Some scheme like elligator ( https://elligator.cr.yp.to/ ) could be used to make the signal very stealth if it doesn't collision with other used signal on the same radio band.
But it would probably needs lot of relaying nodes in the way to make it viable on long distance, but for let say cities or denely populated place could not be a problem, and some few nodes could bridge via internet or sattelite for long range communication. As bitcoin protocol is already resistant to middle man attacks and such i don't see why this shouldn't be possible.
If you need to mine that would probably be very limited though. But for things like SPV or non mining nodes, i think that could be very possible.
I've read somewhere that it was possible to send Bitcoin through radio waves.
I think that you may be meaning something like https://satoshi.radio.br/wp/ which, from what I know, is not yet live/useful.
One problem may be the long-distance radio bands being controlled by the state/illegal to be used by individuals. But I'm no specialist.
There was somewhat related discussion last year here: https://bitcointalksearch.org/topic/first-bitcoin-then-blockstream-satellite-how-about-we-go-fully-decentralized-5365021
Check out this Tweet thread: https://twitter.com/nvk/status/1101518677910810624
Unfortunately I don't understand it enough to be able to explain it.
Unfortunately I don't understand it enough to be able to explain it.
It sounds crazy, but if it really works, then governments will have a hard time trying to restrict people's access to Bitcoin.
Governments restricting access to Bitcoin through the internet would be pretty difficult enough; unless they shut down the entire internet. 
I've read somewhere that it was possible to send Bitcoin through radio waves. If I'm not mistaken, someone was able to send Bitcoin through HAM radio. It sounds crazy, but if it really works, then governments will have a hard time trying to restrict people's access to Bitcoin. This will enable true censorship-resistance as we speak.
That said, I'm curious to know how this is done. If you happen to know how, I'd appreciate if you could share it here for the benefit of all. Thank you.
That said, I'm curious to know how this is done. If you happen to know how, I'd appreciate if you could share it here for the benefit of all. Thank you.
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