____twoism

It definitely could be but it also could be made a million other ways too. You have to question which is more likely and to be honest, with BoC it's 50/50, would they take the easy route to get that sound? and if so, what is even the easy way when it's such a minute element of the track.
I feel ...

I definitely hear it, sounds like it was sped up and maybe pitched up, but I definitely hear the similarity.

I think it is also is spliced, as you can hear the sample cut right after the little vibrato dave gilmour does. It has to be from live at pompeii, if not then I wonder how they would get ...

I was listening to TH the other day and realized that the violin sounding sample they used sounded like it was actually David Gilmours slide guitar from live at pompeii, and sure enough, I think I found it.
https://youtu.be/y-E7_VHLvkE?t=43 0:43
https://youtu.be/Ptiofd3x-cE?t=40 0:40
It only happens ...