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376 World's smallest QR code, smaller than bacteria, could store data for centuries

ScienceDaily
ScienceDaily · 03/29/2026 01:07 EDT

Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscope—smaller than most bacteria and now officially a world record. But this isn’t just about size; it’s about durability. By engraving data into ultra-stable ceramic materials, the team has opened the door to storing information that could last for centuries or even millennia without needing power or maintenance.

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