eWitness

ewitness_team

About this app

In an era of deepfakes, generative AI imagery, and rampant photo manipulation, the simple question "is this real?" has never been harder to answer. Misinformation and disinformation are escalating threats to journalism, public safety, and trust in democratic institutions.

Verifying digital images from unknown sources has become an essential part of the editorial process in the news industry. Social media platforms bear a corporate responsibility to establish trust in authentic content, recognize tampering early, and prevent circulation of images that do not come from verified sources.

eWitness addresses this challenge by registering a SmartHash fingerprint of every photo or video on an immutable blockchain at the moment of capture — making the chain of custody permanent and publicly verifiable.

What’s new

eWitness uses SmartHash — a peer-reviewed DCT-based perceptual hashing algorithm — to establish tamper-proof provenance for every photo and video you capture. It returns to Google Play after a hiatus of 6 months, ready to empower content creators with the ability to prove the authenticity of their work