Keep discovering #Nostr and #Primal.

After the messages on the fake account asking for donations for care, I wondered how to spot fake accounts and also multi-accounts that might self-congratulate, for example, to push a product or service.

In terms of Bitcoin knowledge, I'm limited to mining; I accumulate what I can and hodl.

But it seemed to me that the blockchain could also be used to confirm an identity (or a pseudonym). Is this true, and are there any Nostr developers who have created this type of verification ?

I regularly read : "Don't trust, verify"

In short, how do I know if 20 people give advice that it's not actually 20 times the same person with 20 accounts who just wants to convince me or sell me something ?

#asknostr