Around the world, QR codes continue to explode in popularity as a payments instrument. In China, over the past three years, QR code “scan-to-pay” solutions have grown 15-fold, reaching $1.3 trillion U.S. in the fourth quarter of 2019. And globally, 4% of all consumer transactions leverage a QR code, according to research from Kleiner Perkins Caufield & Byers, Visa Inc., and GfK. While many digital payments modalities are gaining traction today, the opportunity with QR codes lies in t...