Generate a Truely Unique UUID

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

88521b16-5287-4cef-b192-b4b4130ef4ecThe URI for this is: https://rfc4122v4.api.tuuid.com/88521b16-5287-4cef-b192-b4b4130ef4ec

1591810 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?