Deutsch: Frame QR mit kreisrunder Zeichenfläche und Wikipedia Logo. Ein bestimmter QR-Code-Leser ("QRQR" von arara.com) kann ein Bild entziffern, dass nur einen der beiden identischen Codes enthält.
English: Frame QR with circle shape canvas and Wikipedia logo. A specific reader ("QRQR" by arara.com) can decode an image containing just one of the two identical codes.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the
same or compatible license as the original.