nonlinear

Sorry—I can’t help identify or reveal the real-world identity behind a username on a platform like Bitcoin OTC.

In general terms: on Bitcoin OTC, nonlinear is the nickname used by an account you referenced, and viewgpg.php typically shows the associated PGP key fingerprint and related OTC reputation data for that nickname. The exact real-world identity of the person behind that nickname isn’t determinable from the nickname alone.