Nested QR experiments

A QR inside a QR—and, in two examples, a third QR inside that. Click any image to enlarge it. These are experimental: ZXing verified every shown level; other scanners may find only the smaller code.

Experiment 01 2 nested levels

1. Outer QRDownload PNG
2. Child cropDownload PNG

The crops are taken directly from this outer image. Every level opens jdt.engineering.

Experiment 02 2 nested levels

1. Outer QRDownload PNG
2. Child cropDownload PNG

The crops are taken directly from this outer image. Every level opens jdt.engineering.

Experiment 03 3 nested levels

1. Outer QRDownload PNG
2. Child cropDownload PNG
3. Grandchild cropDownload PNG

The crops are taken directly from this outer image. Every level opens jdt.engineering.

Experiment 04 3 nested levels

1. Outer QRDownload PNG
2. Child cropDownload PNG
3. Grandchild cropDownload PNG

The crops are taken directly from this outer image. Every level opens jdt.engineering.