[jdoe1337halo]

Hey guys I made a website so yall can try this out yourself! I don't have the exact methodology that Christian uses, so here is how I did it:

The ambiguous QR code in this application works by combining two different QR codes into a single image using a diagonal split pattern. When two QR codes have different patterns at the same position, the cell is split diagonally - one half represents the first QR code and the other half represents the second QR code. When both QR codes have the same pattern at a position (both black or both white), the cell is filled with a solid color. Due to the high error correction capability of QR codes (using error correction level 'H'), QR code scanners can still read either URL depending on the scanning angle, though as noted in the UI, it tends to favor the second URL more frequently.

https://dualqrcode.com/

[HenryBemis]

It didn't work for me. I generated two links (BBC, CNN) and tried on my Android, with the app "QR & Barcode Scanner" v2.2.47. I also tried with the stock camera of an iPhone 13. In both they couldn't 'read' them.

[Aachen]

Doesn't scan from a screenshot in https://f-droid.org/packages/com.atharok.barcodescanner/ either

[jdoe1337halo]

Strange, I am using an iPhone 12 pro max and it works for me. I am going to keep playing around with different pixel painting techniques and see if I can get a more reliable, 50/50 split on both links. Thanks for trying!