Every Youtube video has a storyboard. I'm not sure it is the right word but I'm referring to the thumbnails that appear when you hover over the timeline of the player. Examining the network tab in Chrome console, I saw it arrives as a single image of all the storyboard images concatenated
For example for this video this is the storyboard
I was wondering if there is a way to get the storyboard using the video URL / video ID?