During the halftime show of this year's Super Bowl, a floating QR code took a star turn in a prominently placed advertisement. That ad, which was run by cryptocurrency exchange platform Coinbase, consisted of nothing more than a multi-colored QR code slowly bouncing across the television screen for almost a minute without any other identifying information or attribution. At the ad's end, Coinbase's name and a link to its website briefly appeared. Viewers could use their cellphone cameras to see where the QR code led or patiently wait and hope that the ad would explain what was going on.