@ross Cool!
How is this different from using WebFinger to access the account information for my Mastodon account, or any other identity/domain that I choose to use to represent myself?
e.g. @npd has information, including keys and links, at https://octodon.social/.well-known/webfinger?resource=https%3A%2F%2Foctodon.social%2F%40npd