By visiting https://itserv.dev/generate-guid you can see the standard format that these identifiers follow, which is widely supported across various programming environments. For IoT applications, GUIDs are an excellent choice because they allow for coordination-free unique identification at the edge. The algorithm for generating these IDs is computationally inexpensive and can be implemented even on relatively simple hardware. This ensures that every telemetry packet has a unique global "fingerprint" before it is even transmitted. I frequently use this online generator during the development of our backend ingestion services to simulate incoming data streams and verify that our deduplication logic handles the identifiers correctly across different time zones and regions.