I'm experimenting with making a QR code that I might put on my artwork, but this one probably isn't it, assuming I do it at all. So far I think they look ugly no matter what I do. But I did find out that I can put this purple version of my signature right in the middle of a QR code, and it's still readable! This QR code just contains the URL to my FA profile page.

This is a 33x33 pixel code block with a 1-pixel quiet zone around it, but the whole thing is enlarged to have 3x3 pixel squares, so my signature isn't too small to see. I tried 1x1 pixel squares and my phone couldn't read it from my screen. I tried 2x2 pixel squares and my phone could read it, but the signature was too tiny.