This is pretty cool. I hope someone develops a standard for this. I imagine putting a QR code on my roof that points to a web service that could be interrogat

This is pretty cool. I hope someone develops a standard for this. I imagine putting a QR code on my roof that points to a web service that could be interrogated to obtain information about the physical location. Then, processors could be built to automatically index geographical areas from satellite data. $8500 is really steep, though. What would be the minimum size of the artifact, to reliably enable current satellite technology to read a URL-sized chuck of information?