Guild Wars 2

Are they per account or per char? For example do I get to open an extra chest if I do 10 on one char and 12 on another, or does the one time you open it count for your entire account?

i tried doing level 10 on two chars and it gave me the chests for each. so by the looks of it it’s per char.

it also separates 2-8, 10-18, 20-28, etc. into separate dailies. (you could get 3 chests for doing a level in each bracket.
I’m not sure how many brackets there are. could be infinite (if you can get there, they will reward)