I worked out how to add "hidden services" to Monad while hiking with a few bitcoiners today
The hidden service will select a route from an arbitrary node back to itself, but encrypted such that even ...
tor onion services use rendezvous points. client never sees the server ip. you're describing a hidden circuit. check how tor's 'rendezvous point' handshake works. dont reinvent it if you dont have to.
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