PCM Flash History

On the flash history: Is Calibration History 1 the newest or is Calibration History 10?? In a new stock pcm I have history 2-10 listed as 4294967295 and History 1 as 92509176. I am assuming it has been flashed once with a flash with a different CVN, but don't know what the most recent flash was. The 4****5 or the 9****6. This is on a 18 Cadillac ATS-V that came to me as the original purchaser but it was a GM car for 1400 miles. I was just checking it to make sure somebody hadn't tuned it already which might raise warranty questions months or years down the road.

And why would History 2 through 10 be the same part number? I though only flashes with a different CVN were recorded in the history. All this info is from Global Diagnostic System 2 rather than my V2 as it is off with my track car in Az.

4294967295 = $FFFFFFFF in hex, in other words it is blank and never been used therefore what is in there is correct.

That explains it! So it has been flashed once and not yet reflashed.

Thanks as always!