Microscopic QR code sets world record with massive 2TB per page storage density

Researchers at TU Wien and Cerabyte created the world's smallest QR code at just 1.98 square micrometers, using ceramic films that can store over 2 terabytes per A4 page while remaining stable for centuries. Unlike traditional storage that requires constant power and cooling, this ceramic technology uses focused ion beams to etch data into durable materials that withstand extreme conditions without electricity, offering a sustainable alternative to energy-intensive data centers.