[matsemann]

I think this has been done for a long time? I made this one that looks like a VLC logo and links to VLC, back in 2013. https://imgur.com/a/rq8WzGm inspired by some post I read at the time.

If you scan it, you realize it's putting lots of "junk" at the end of the URL that doesn't change its meaning, but is used to tweak how the QR code looks.

The URL is on the form videolan.org/#234234234523453455...

[cafxx]

Sorry, yes, I should have clarified I meant "no-one has done it in the current batch of diffusion-based experiments". As you point out it has been done multiple times before, e.g. https://research.swtch.com/qart (online demo https://research.swtch.com/qr/draw/).