Proof of Stake means that every node must hold the whole chain to be able to verify on. Every Server is a client and every client is a server. Every new block is then distributed to every node. Every transaction is stored if verified at every single Node.
Discussion
Correct, I already understand this about Bitcoin network. But now I see the difference of the relay... because NOSTR is not a block chain network, it's a different beast. I've been in Bitcoin a while so I understand that well... it's the NOSTR stuff I'm still learning. (Well... let's be honest, the BTC learning also never ends, the rabbit hole just gets deeper at every turn 😂)