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Bitcoin, Bitcoin Cash and Ethereum (and probably other coins) all work over SMS. They are actually substrate-agnostic. You can technically deliver your transact

Bitcoin, Bitcoin Cash and Ethereum (and probably other coins) all work over SMS. They are actually substrate-agnostic. You can technically deliver your transaction to a node with a pigeon, as long as the node accepts pigeons.

xorcist 8y ago
You need to process incoming transactions as well. It's inconvenient to receive the blockchain over carrier pigeons.
- VMG 8y ago
  Circumventing censorship is always inconvenient. That is the point of censorship.