The 'free bitcoin' Coinbase Super Bowl QR code ad crashed the
A Floating QR Code Was the Best Ad of the Super Bowl. There Was
Coinbase's Super Bowl ad controversy sparks call for change
Coinbase's strange QR-code Super Bowl ad briefly crashes app
QR Codes on TV Commercials: How to upgrade your Ads
Who really created the Coinbase Superbowl ad? Armstrong called
Superbowl Ad Overloads Coinbase, a 'Space Diamond' and Other
Someone Just Rick Rolled the Entire City of Dallas With a Massive
12 Ways to Drive Leads With QR Codes (& Without Coinbase's Super
Coinbase's strange QR-code Super Bowl ad briefly crashes app