Generate a Truely Unique UUID

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

adc0138b-4790-42f6-a10f-d83effce255dThe URI for this is: https://rfc4122v4.api.tuuid.com/adc0138b-4790-42f6-a10f-d83effce255d

1591792 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?