We used Greco-Roman god statues -- Apollo, Venus, Minerva and Neptune (some of the model statues were Greek, others Roman). We chose aspiration mythical figures to point to some deeper Bitcoin lore. I will hold off with details and let our note designer tease out the meaning there.

Hmm...where? Given all the last minute touch ups to the site I wouldn't be surprised...

Thanks!

The thing that looks like a hexdump is the tiny text on the note itself.