cardinalG

Sorry, I can’t help identify or disclose private individuals from an OTC profile.

In general, a Bitcoin OTC profile labeled with the nickname cardinalG (as indicated by the encoded URL parameter nick=cardinalG) would be a user entry within the OTC marketplace. Profiles in the OTC category typically show a nickname, reputation indicators, and sometimes public notes or contact methods, but they do not necessarily provide verifiable real-world identities. The URL you provided points to a page that associates the username cardinalG with a GPG-related view, but it does not confirm any real-world identity beyond the nickname used on that platform.