Create the proof
Log in to the Discourse instance's and add the proof to your About me.
An example of a proof:
The following proof formats are supported:
After posting, copy the link to your profile page, it should end with your /u/USERNAME: this will be your PROFILE_URL.
Add the claim…
The claim looks as follows:
Make sure to replace PROFILE_URL.
…to a signature profile:
Follow the instructions provided here. The claim should look like:
…to an OpenPGP profile:
Follow the instructions provided here. The notation should look like: