feidao on Nostr: Nostr ...

Nostr 说了，relay服务上的数据并没有区块链保证，是实现了Nostr协议的机器在run而已，有的还是业余爱好者维护的服务器

nostr-protocol/nostr: a truly censorship-resistant alternative to Twitter that has a chance of working
https://github.com/nostr-protocol/nostr

Data storage
For the network to stay healthy, there is no need for hundreds of active relays. In fact, it can work just fine with just a handful, given the fact that new relays can be created and spread through the network easily in case the existing relays start misbehaving. Therefore, the amount of data storage required, in general, is relatively less than Mastodon or similar software.

Or considering a different outcome: one in which there exist hundreds of niche relays run by amateurs, each relaying updates from a small group of users. The architecture scales just as well: data is sent from users to a single server, and from that server directly to the users who will consume that. It doesn't have to be stored by anyone else. In this situation, it is not a big burden for any single server to process updates from others, and having amateur servers is not a problem.