I don't read the white paper, because they tell their ico like story telling and its quite tired to read it, if you wanna doing a research you could see from the website, sometimes they telling the main project on their web. You could see what their offering. Smart contract or eco friendly product could be the option. If there is no explaination about main project on web then you could see from whitepaper just see the vision and mision, who is the team, what project, who will sponsor and who will use the product or services.