Fake Check: A photo-based authenticity pre-screen for vintage Pokemon cards that flags shadowless, 1st Edition and reprint tells before you buy or sell.

Curate a visual tell library for the 50 most-faked cards, offer free community checks, and charge for expert second opinions.

Why it can work: Counterfeits flood every vintage deal, and buyers overpay out of fear; a photo pre-screen turns anxiety into a service people pay for before every big purchase.