A QR code stuck on a man's nail is seen in Iruma city, Saitama prefecture, in Tokyo, Japan, on Jan 25, 2017. Since the end of the 2016 the Iruma city has supplied tiny waterproof QR code stickers to ...
Some people microchip their pets to ensure they’re easily found when lost, but now a city in Japan wants to apply a similar approach to their elderly – and they’re turning to QR code stickers instead ...
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