Let's list the identity proofs stored in our OpenPGP keys.
First, edit the key (make sure to replace FINGERPRINT):
gpg --edit-key FINGERPRINT
List detailed preferences:
showpref
You should now see your key details, uid, and proofs assigned to your keys:
[ultimate] (1). Your Name
Cipher: AES256, AES192, AES, 3DES
Digest: SHA512, SHA384, SHA256, SHA1
Compression: ZLIB, BZIP2, ZIP, Uncompressed
Features: MDC, Keyserver no-modify
Notations: proof@metacode.biz=https://gist.github.com/youruser/somehash
proof@metacode.biz=dns:yourdomain.org?type=TXT
Exit gpg:
quit