We welcome you to create an official Tor channel on Nostr and you can offer us a tor relay to communicate over tor on Nostr. Well, anyhow, there’s already a piped account from mastodon with npub key
npub1y8av7a5337erepxphjf50c9p4w5ghu6zu56fjqklpw0n06d7wvgqwh5cy0 but it will be nicer to see your official account. 
See ya on Nostr