Yes, the nostr protocol is entirely decentralized, and there are no obligations to use a particular logo. Everyone is free to contribute to the nostr ecosystem and create the visuals they like. However, we believe that having a recognizable logo would be beneficial for the Nostr community as a whole!

Below you can find a proposal by Andrea Nicolini, aka Bembureda.

==> Download the full package here, it includes PNG and SVG versions, in different sizes and colors.

Purple on white	White on purple

Purple	White

In order to ensure the widest reach, Andrea released his work for the Nostr community under the Creative Commons Zero v1.0 Universal (CC0) license. CC0 enables creators and owners of copyright-protected content to waive their rights so that others may freely build upon, enhance and reuse the works for any purposes without restriction under copyright or database law.

If you like this logo, show your appreciation by sending Andrea a small donation: https://getalby.com/p/bembureda