Generate a Truely Unique UUID

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

b72d0ba9-9dfe-4fd7-b944-ce64e3d1ab3dThe URI for this is: https://rfc4122v4.api.tuuid.com/b72d0ba9-9dfe-4fd7-b944-ce64e3d1ab3d

1591806 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?