Look at the products of the project, that what they are really trying to achieve and on what basis their work is ongoing. Look at their partnerships with the top projects. And mostly you should look at the backed by system, that which project has invested in that projects. This could help you.
Just like so product can be found on website it does not mean that it is real project ,that it is just another scam. You should take a look on project roadmaps , whitepappers and other realisations that they believe they can achieve. But today it is risky because when you know all that and it seems its true that it is not scam something suddenly goes wrong and like there is no back your money or your time you put in project. Good luck really.