In order to fill out part 2 of the W-8BEN form, please read carefully and fill in the details accurately: for point #9; please add your Country of residence.

In point #10; as can be confirmed here; please add the type of Income and then any additional condition that you may meet to be eligible for the rate of withholding.

As of November 30th 2018, the article and paragraph number for Residents of Canada are "12(2), (3)" and the Royalty WHT rate is 0% (zero).

You may download the W-8BEN for here.