QR Code

A QR code is a type of barcode in the form of a square. The letters QR stand for 'Quick Response'. The code contains many dots, a few small squares and sometimes a small logo in the middle. This is different from most other barcode types, which are rectangular with lines. A QR code can therefore contain much more information. Within the crypto world, it is often used to make a 'wallet' address scannable. This speeds up the process of transferring crypto and prevents errors.