This is bound to get you banned. I would do it a little bit more clever (with lower bitrate/throughput/storage sizes)...<p>Encode the data inside audio, preferrably outside human audible range, and then use a nice video of singing birds, or whales talking, and use the "hidden" frequencies to hide the data.<p>I don't know if Youtube has any filters that cut out frequencies, but this way they can't ban you, since you've uploaded a really nice personal video of your singing birds, instead of the conspicuous looking QR-like codes as in the OP ;-)