What are digital signatures?

Most online services ask their users to trust them that they're being honest, and they usually are. However, traditional social media platforms have the ability to create forged content that can appear to be genuinely authored, but which are actually counterfeit.

On Nostr, all your content is authenticated using digital signatures, which cryptographically tie a particular person to a given post or message.

The result is that you don't normally have to trust service providers not to tamper with the information flowing through the network — instead, your client software can prove that a given piece of data is authentic.