Let's add a decentralized Mastodon proof to your OpenPGP keys.

Update the Mastodon account

Log in to your Mastodon instance and click on Edit profile.

Add a new item under Profile metadata with the label OpenPGP and your PGP fingerprint as the content.

Update the PGP key

First, edit the key (make sure to replace FINGERPRINT):

Add a new notation:

Enter the notation (make sure to update the link):

Save the key:

Upload the key to WKD or use the following command to upload the key to keys.openpgp.org (make sure to replace FINGERPRINT):

And you're done! Reload your profile page, it should now show a verified Mastodon account.