reading offset

Hi, I've build a version of the reading based on your code.
the issue I got is that the value from ReadMemory() is diffrent from what I see on the "original" reader display (for example the libre reader shows 185 while the code shows ~212 even on the ternd[]).
can you explain a little bit about the data structure you download from the tag so I can dig into this ??
thanks
Ido