Now verified through my blog on Blogger.
Created a **page**, not a post, titled 'Mastodon'. Edited using the HTML editor. All it has on the page is `<a href="https://qoto.org/@rmerriam" rel="me">Mastodon Link</a>`
Pleasantly surprised by how fast the verification appeared. One site I used for the GitHub verification said every time you save profile changes, the verification is checked. Also indicated you have to leave the verification URLs in place.
Next tried to verify my website (mysticlakesoftware.com) but I used Google Sites. There doesn't appear to be a way to get my Mastodon URL into the HTML as there is with Blogger.