Generally a good idea, but there are edge cases that need to be handled for this to work.
A copyrighted video might not be uploaded to YouTube, in which case you'd have to fall back on the video creation date, which would have to be manually added in their DB (e.g. Hollywood produced movies).
You can also have leaks of videos before their official release. Admittedly a rare scenario that should can be accounted for in other ways (i.e. skip this check if before upload).
A copyrighted video might not be uploaded to YouTube, in which case you'd have to fall back on the video creation date, which would have to be manually added in their DB (e.g. Hollywood produced movies).
You can also have leaks of videos before their official release. Admittedly a rare scenario that should can be accounted for in other ways (i.e. skip this check if before upload).