Hey, this tab show how he plays it live most of the time.
_________________________________________________
E]-----------------------------------------------]
B]-----------------------------------------------]
G]-0-0-0-0-0-0-0-0---0----0---0-------0-0-0--0---]
D]-2-5-5-5-5-4-2-0h2-0----0---0-------0-0-0h3----]
A]-2-2-2-2-2-2-3-3---0h2--0h2-2h3-3/5-5-5-5------]
E]-0-0-0-0-0-0-------3----3---0------------------] 2x
(hammer on the first chord (Em) sounds great, Damien does it sometimes)
[ Tab from: https://www.guitartabs.cc/tabs/d/damien_rice/canonball_tab.html ]
___________________________________________________
E]-------------------------------------------------]
B]-----0-0-0-0-0-0-0-------------------------------]
G]-0---4-4-4-4-5-4-0h2p0-0---0---0-------0-0-0--0--]
D]-0h2-0-0-0-0-0-0-0-----0---0---0-------0-0-0h3---]
A]-0h2-2-2-2-2-2-2-2-----0h2-0h2-2h3-3/5-5-5-5-----]
E]-0---------------------3---3---0-----------------]
__________________________________________________________
E]-0---0-0-0-0---0-0---0-0-0---0-0-0---0-0-0---0-0-0-0----] 0...
B]-0h1-1-1-0-0h1-1-1---1-1-1---1-1-1---1-1-1/3-3-3-3-0----] 0...
G]-0---0-0-0-0---0-0---0-0-0---0-0-0---0-0-0---0-0-4-0----] 0...
D]-2---2-2-2-----2-0---0-0-0---0-0-0h2-2-2-2/4-4-4-0-0----] 0h2...
A]-3---3-3-3-----3-0h2-2-2-2h3-3-3-3---3-3-3/5-5-5-5-0----] 0h2...
E]--------------------------------------------------------] 0...
The strumming may be rather hard in the beginning, but it will work out ;)