Yes it's a copy of their blockchain. I don't know what kind of message their chain. I'm 'not really sure a lemmy community is the best place to put it but it's a copy... Maybe they're just stupid.
I don't understand on the white paper how it can be "like P2P" and have community with users.
I misunderstood maybe but it seems that A creates a node and asks B to resolve a challenge to post on the node. And then any client can get the content from the node...
Isn't that how every social platform works?
Keyboard. (Even virtual is ok) It's really hard to write code without it.