The blog just leads to https://research.swtch.com/qr/draw/, which is the demo page of the blogs [1] and [2] written by Russ Cox many years ago about putting pictures in QR codes by manipulating the error correction codes in them
[1]: https://research.swtch.com/qart [2] https://research.swtch.com/field
Does this mean you could make a gif which is a valid QR code playing Bad Apple?
alt Hacker News
The blog just leads to https://research.swtch.com/qr/draw/, which is the demo page of the blogs [1] and [2] written by Russ Cox many years ago about putting pictures in QR codes by manipulating the error correction codes in them
[1]: https://research.swtch.com/qart [2] https://research.swtch.com/field