Hello all you A&G treasure hunters out there. The ball is in your court so let me know your thoughts if there was a card like this by a major card company. 
Cryptoballs..There would be binary numbers around the outer edge of the ball.
Cryptoballs..There would be binary numbers around the outer edge of the ball.might be ok if a qr code or public keys around the ball and private keys hidden somewhere.
I will take that as a dislike because there would never be any qr codes or hidden keys. It would be as simple as the A&G cards, total mainstream. Thank you for your thoughts