Generate a Truely Unique UUID

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

9f636ede-a66d-42b4-980f-90e257a51ad5The URI for this is: https://rfc4122v4.api.tuuid.com/9f636ede-a66d-42b4-980f-90e257a51ad5

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?