
Austria’s TU Wien Sets World Record for Smallest QR Code
Austria’s TU Wien has set a Guinness World Record by creating the smallest QR code ever, measuring just 1.98 square micrometers—smaller than most bacteria. Working with industry partner Cerabyte, researchers engraved the code into durable ceramic material using focused ion beams. The technology could lead to ultra-dense, long-term data storage that lasts centuries without energy.














