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

Post a Reddit proof message

Log in to www.reddit.com and compose a new tweet with the following text (make sure to replace FINGERPRINT):

This is an OpenPGP proof that connects my OpenPGP key to this Reddit account. For details check out https://keyoxide.org/guides/openpgp-proofs

[Verifying my OpenPGP key: openpgp4fpr:FINGERPRINT]

After posting, copy the link to the post.

Update the PGP key

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

gpg --edit-key FINGERPRINT

Add a new notation:

notation

Enter the notation (make sure to update with the link to the post copied above):

proof@metacode.biz=https://www.reddit.com/user/USERNAME/comments/123123/TITLE/

Save the key:

save

Upload the key to the HKP servers (make sure to replace FINGERPRINT):

gpg --send-keys FINGERPRINT

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