Canine microchips, do you think it proves ownership of a dog?

It is a great idea to micro-chip your pet. Most shelters do scan animals that come in and if a lost dog comes in to a vet. clinic they do scan them. Sometimes you can miss a chip because it migrated. The Home Again chip is less likely to migrate! If a dog gets stolen yes it is the only way to really prove an animal is yours aside from a tattoo. Yes I think vets and shelters should be legally obligated to scan for microchips.