key-signing for pseudonyms

[Atom 'Smasher']

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

if one's pgp key identifies them by real name, it's fairly straight
forward to verify their ID and confirm their identity, so that their key
can be signed with confidence.

what happens, though, when one uses a pseudonym, alias, or "hacker name"
as the name in their pgp key? if one is at a key-signing party, or just a
room full of pgp users, how does one "prove" that identity?

how much of the verification relies on control of an email address and
key, vs how much depends on verifying the name of the person? would a
photo in the key add credibility?


        ...atom

 _________________________________________
 PGP key - http://atom.smasher.org/pgp.txt
 762A 3B98 A3C3 96C9 C6B7 582A B88D 52E4 D9F5 7808
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Version: GnuPG v1.2.4 (FreeBSD)
Comment: What is this gibberish?  -  http://atom.smasher.org/links/#digital_signatures

iEYEARECAAYFAkClszwACgkQnCgLvz19QeNtVQCgqTMjjLnrDqhlkxG4P4p9QsMz
5kkAnAgNehP+AmmihCm+ltXympZTPR3o
=QALR
-----END PGP SIGNATURE-----