Seems like it would be a nice feature for security-minded folks, and would probably be pretty difficult to roll out to regular consumers. Does Mastodon have something like this? Sounds like something their userbase would appreciate.
I’m honestly surprised this isn’t common already in the crypto space and kinda wonder if I’m missing something
Plus, reading your example in a different comment, it's completely jarring to someone who isn't used to reading things in that format.