Generate a Truely Unique UUID

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

cceec688-43e4-47e7-aead-3f4d0948487aThe URI for this is: https://rfc4122v4.api.tuuid.com/cceec688-43e4-47e7-aead-3f4d0948487a

1591793 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?