Veridenz
Capture. Prove. Verify.
About
Capture and securely store important photos, creating verifiable proof for later. This app keeps images private, generates cryptographically signed records, and publishes them to a decentralized network for verification. It's ideal for documenting work, property, and other critical information.
What's New in Veridenz
1.2.1
August 17, 2026
Veridenz 1.2.1 focuses on reliability, with fixes for signing identity continuity and witness creation on Mac. It also resolves a crash that could occur when saving a witness and includes additional stability improvements.
MoreIn-App Purchases
$1.99
Lifetime Unlock
Unlock unlimited photo witnessing.
Developer apps
FAQ
Does Veridenz have ads?
No, Veridenz does not contain advertisements. The app is free to download and offers a one-time in-app purchase for full functionality.
What is the Veridenz Lifetime Unlock?
The Veridenz Lifetime Unlock is a one-time in-app purchase that enables the creation of captures, generation of signed witnesses, publishing records to Nostr, and verifying evidence. No subscription is needed.
How does Veridenz ensure photo privacy?
Veridenz keeps photos stored privately within the app and does not automatically add them to your device's Photos library. You can choose to export the original file or save a separate copy to Photos.
Can Veridenz guarantee court acceptance of photos?
Veridenz can show that a specific file matches a signed witness record published at a particular time. However, it cannot prove a scene was not staged or guarantee acceptance by courts, insurers, or employers.
What devices does Veridenz support?
Veridenz is available for iPhone and iPad devices. It was last updated on August 5, 2026, with version 1.0.
How is a witness record created and published?
Each capture creates a cryptographically signed witness tied to the original image. This witness record is then published to the decentralized Nostr network, while the photo itself remains private.
What information can be verified with Veridenz?
Verification can confirm that the image matches the originally witnessed file, that the cryptographic signature is valid, and that the witness record exists on the Nostr network.
Does Veridenz require an account to use?
No, Veridenz does not require an account. Your Nostr key is created and managed by the app, and is used to sign each witness record.