Uproov

Developed by Ledger Assets Pty Ltd and launched in December 2015, Uproov is an app that uses blockchain technology to ensure photos, videos and audio recordings are never altered, and remain in their original state. Uproov (“You Prove”) involves using a unique time stamped encryption key for every image or recording, which is then locked. Even a photo of the photo cannot be taken, which the company claims is a world first.