[$] ProofMode: a camera app for verifiable photography

The default apps on a mobile platform like Android are familiar targets forreplacement, especially for developers concerned about security. But whilemessaging and voice apps (which can be replaced by Signal and Ostel, forinstance) may be the best known examples, the non-profit Guardian Project has taken up thecause of improving the security features of the camera app. Its latestsuch project is ProofMode, an appto let users take photos and videos that can be verified as authentic bythird parties.