can canadian embassy cancel valid us visa without informing the us embassy and that also with ordinary pen?

Answer 1

Yes, an ordinary pen is just as official as a special stamp with special ink. And just so you know, your visa was canceled in cooperation with the US embassy. And just because you so conveniently lost the passport with the canceled visa in it, there is a computer record of the cancellation, so your clever games will not work, even if you now have a fresh passport.

Answer 2

only the US consulate /embassy can cancel a US visa are you sure its not check mark give more detail (amend your question )