Turn your photos and videos into secure, signed visual evidence

ProofMode Developer Libraries

Code and libraries for developers to integrate ProofMode

ProofMode developed library for Android is available today, with the iOS and other platform libraries available soon.

You can access the source code for the Android library within the main project at

The library is available as a maven dependency on

allprojects {
	repositories {
		maven { url '' }

Then, in build.grade dependencies add:

dependencies {
        implementation 'com.github.guardianproject:proofmode:0.10-library'

Example implementation of how to generate ProofMode metadata within your application is available through the OpenArchive Save for Android app.

You can see the call to “generateProof()” here.