I am a software developer and i am working on a mobile app, in which i am using images. I took all these images from a website, and according to this website, they all have a Creative Commons Zero (CCO) license, so i am sure i can use them.
I ended up downloading them and using them in my mobile app. However i have a feeling that it's not enough.
Let's imagine someone wants to sue me saying the images i use don't have license, how can i proove him i am right ? Just sayin "i read the website and drag and dropped" seems a bit messy to me.
Is there any legal document i should do or any best practices, so i will be sure i won't get sued ?
I want to be sure i can proove i am in my right