Let's say they cut the Internet tomorrow. I will still have my private keys on my offline computer, but I won't be able to sync the blockchain (as won't anyone else) nor would i be able to make any transaction either.

But once I heard something about a satellite beaming down the blockchain at all times or something. And that was in like 2013. Did that ever go anywhere?

Is there some readily sold product which I can order which is like a little antenna which I attach via USB to my PC and which then can receive the blockchain and send coins via some kind of satellite or other form of radio communication in a decentralized manner?

1 Answer 1


Blockstream have multiple satellite circling around the earth and broadcasting the blockchain or receiving and sending transaction without interruption.


They have their own kit to use the service:


  • 4
    Note that the satellites aren't owned by Blockstream. They rent bandwidth on existing telecommunication satellites. Feb 28, 2021 at 22:21

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.