Legit blue sky, natural Clouds and perfect example of real contrails

EDIT: At ~1:18 the second jet crosses the sky. The resolution of the uploaded vid is not as crisp as the original vid ... I saw a commercial jet aircraft with a real contrail. It's coming out behind the cloud to the upper right. Pretty faint, so you need to zoom in. But in the middle of the vid I saw another commercial jet leaving a real contrail that was closer and easily visible. When you compare this to my other vids, it should be painfully obvious that the other vids are definitely not contrails, and whatever is coming out of the back of them is not producing water vapor that evaporates almost immediately.