UUID GUID Oversimplified – Are they Really Unique? - 8bitmen.com
This write-up is a comprehensive guide to UUID & GUID. Are they really unique? How do big online platforms like GitHub, Facebook, Aadhar generate UUIDs to uniquely identify information?
... GitHub, Facebook, Aadhar generate UUIDs to uniquely identify information? Has there ever been a UUID collision? What happens when there is a collision?