What is Nostr?
justin /
npub1uaw…er67
2022-12-24 05:12:13
in reply to nevent1q…0rm8

justin on Nostr: So to prove a message was created before a time, you hash the content and add to ...

So to prove a message was created before a time, you hash the content and add to blockchain. To prove a message happened after a time, you include a hash of a block in your the metadata.
Author Public Key
npub1uawsp4rzdtplkrx0yse69lvrpd8xa8qn69vdcn7xy5ur60r7l34svker67