In reply to:
For blog posts, the typical convention when federating is to show the title of the post and link to the original. Bridgy Fed does that automatically for me. It reads the microformats in my posts to differentiate article and note posts and builds the Mastodon post.
Edit: I added a second screenshot on the wiki of what articles look like: indieweb.org/Bridgy_Fed#gRegor_Morrill