By now, I’m sure you’ll have heard of one of the Super Bowl’s big stories: the Coinbase QR advert. For the uninitiated, Coinbase — a cryptocurrency exchange — ran a 60 second spot that featured a QR code bouncing around in a way reminiscent of old DVD screensavers. It was a roaring success. Coinbase claims it witnessed over 20 million hits in a single minute on its special offer of $15 of free Bitcoin for new sign-ups. Of course, take the visitors figure with a pinch of salt. The number comes from the company itself, meaning the story could be…
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