Hello ,
1. I’m not even sure DHS made the Long3 with ST handle.
I am sure it made before,
2.Do you have the certificate of authenticity that normally comes with DHS blades?
yes, each dhs blade has a date card.
3.but the code format on the blade does not match any of my other DHS blades.
This is an old code from DHS early production, produced with 2013, I still have the 2016 version, this code should be the same as the one you have all along.
4.where you scratch the code used for the dhs product verification
I don't understand your meaning.
The ST version has been discontinued for a long time, I only have two new ones on hand, and you probably won't even find them in China.