When a user scans a QRpedia QR code on their mobile device , the device decodes the QR code into a Uniform Resource Locator ( URL ) using the domain name `` qrwp.org '' and whose path ( final part ) is the title of a Wikipedia article , and sends a request for the article specified in the URL to the QRpedia web server .
A user uses their mobile device to scan a QRpedia QR code .