Charles U. Farley on Nostr: Encoding as emoji is funny, because the UTF8 ends up being 4x as many bytes as the ...

Encoding as emoji is funny, because the UTF8 ends up being 4x as many bytes as the original key, so 128 in this case, but because social media limits the number of characters and not the number of UTF8 bytes, it uses only 32 bytes of your character limit, less than hex or base64 would even though both of those would use less space in the database, in RAM, and on the wire.