Is unown the same letter for every player in a specific spawn?

This article says that Unown can be found in Pokemon GO since Gen II update. It also shows that there are several letters.

I'm wondering if the letter of the Unown is specific to the spawn or if different players can have different letters from the same spawned Unown.

Solution 1:

Yes, I am 100 % sure that any pokemon multiple people capture, they will share the same IV, same form (referring to Dittoes), and same gender. I have caught an unown, along with my grandparents, and we each got an 'I'. Unfortunately, they have not let me provide pictures, but I will include proof ASAP.