Generate a Truely Unique UUID

Watch this closely! You will never ever see this ID again at this place:

6f22c2f6-46a9-4fd2-a0f7-1c8c83fab504The URI for this is: https://rfc4122v4.api.tuuid.com/6f22c2f6-46a9-4fd2-a0f7-1c8c83fab504

1591804 truely unique UUID's were so far generated. Potential collisions prevented: 0

What is an UUID?

What means truely unique?

Is there a warranty for this service?