Generate a Truely Unique UUID

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

3dcf3b40-8769-4b92-86d0-33d7240ec0e4The URI for this is: https://rfc4122v4.api.tuuid.com/3dcf3b40-8769-4b92-86d0-33d7240ec0e4

1591813 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?