Sounds a grand idea but years ago i had my horses all done with a firm called farmkey i think thats the name anyway.
One of mine was stolen and passed around until it went through reading sales and someone that i knew recognised the pony,not the brand.
What i am saying is all the branding companies kept a database but what use is it when its never policed,the only thing its good for is to prove that you once owned the animal when it turns up by chance.Thieves are not put off by any labels and databases,they will still steal your animals,anyone found with a marked dog will say they just found