You’ve seen them everywhere. Quick response codes—better known as QR codes—look like pixelated Rorschach tests and occupy the corners of movie posters, restaurant menus, heck even garage sale flyers. Scanning the image with a smartphone camera leads one to the website of the QR-code creator’s choice. And now, if Seattle startup Dynotag has its way, Fido too will bear the mark of the bytes. Users visit dynotag.com, create a free QR tag, and for a fee, fashion it into a dog tag. So when your lost pooch gets found by some iPhone-toting good samaritan—woof!—you’re alerted via email and the samaritan gets the deets on how to return the dog to its now rather QR-code-obsessed owner.