I have an app that has been rejected with "Guideline 5.2.3 - Legal". The content of the app is a shoutcast audio server stream that broadcasts voice audio recordings only. There is no music or copyrighted material besides the voice audio files that are owned by the creator and partner in this app. There is also an HTML/javascript photo gallery of images that are taken by the partner also. These images are of public payphones mostly in ny. How do we best provide documentation of ownership on this content made by us? Especially with the voice only custom content.