To cross check means to verify figures or information by using an alternative source, but in this sentence Pieter used the same source to verify the information
Context: Pieter zoomed in on the gps chart to verify the course and verified the direction by using the same source, which was the large oil compass just behind the helm stand.
Hypothesis: Pieter zoomed in on the gps chart to verify the course and cross checked the direction with the large oil compass just behind the helm stand.

Given this context, determine if the hypothesis is true (Yes, no, or unknown)?