In Machaneh Yehudah there is currently (again) a store with Otzar HaAretz's signs and hechsher. It is the same store and owner as last time.
This time, I was able to successfully reach someone at the Otzar HaAretz toll free number.
They did indeed give him a hechsher again, but it was only for the month of Tammuz.
The goods he is selling are not from Otzar HaAretz.
There was a time in our history that wearing tefillin all day was taken as a sign of being an honest person. Eventually that came to not be the case. (I believe this is brought in the 2nd or 3rd perek of Yerushalmi Brachot)
A kippah, unfortunately, is not a teudat kashrut.