So, as I just learned recently, the <huge number> is their 'Creative ID'. People who use Getty images enough know that they can just track that number and look

So, as I just learned recently, the <huge number> is their 'Creative ID'. People who use Getty images enough know that they can just track that number and look up images from Getty. So, in a sense, you're right. It is both a URL and a 'product code'.