TrustVisor

Businesses are increasingly losing money and time due to unreliable photos and videos—faked, edited, or taken in the wrong place at the wrong time. TrustVisor solves this problem.

The app takes videos and photos and immediately digitally signs them, recording the location and time of shooting. If the file is subsequently altered even by a bit, the signature will no longer match, which is immediately visible during verification.

Technically, the signature is created by the phone's secure chip (Android Keystore) and never leaves the device. It contains the file hash, GPS coordinates and satellite time (when available), device model, and Android version.

Anyone can verify authenticity—free, without installation, on the trustvisor.ru website, completely offline in a browser. The file is not downloaded during verification.

Features:
• Video and photo recording with automatic digital signature
• GPS and satellite time in recordings (Pro plan)
• Completely offline recording, no internet connection required (Pro plan)
• Built-in notepad for work notes with photos, videos, and voice attachments (Pro plan)
• Transfer recordings to a computer via USB cable – no internet connection or third-party apps required
• Free plan – basic recording with limitations, no account registration required

The main application is internal control: when a manager needs to reliably verify that an employee, contractor, or performer actually did what they reported, and didn't just send a random photo or snapshot from the internet.

How companies use TrustVisor:
• Field technicians and service specialists – confirmation that repairs or maintenance were actually performed at the client's site, at the stated time
• Couriers and logistics – confirmation of the fact and status of delivery, as well as the location and time of cargo transfer
• Construction and repair crews – photographic documentation of the work progress, which cannot be falsified retroactively
• Security guards and site workers – confirmation of site inspections at the designated time
• Remote employees and freelancers – completion reports with proof that the task was actually completed
• Field agents and sales representatives – confirmation of client visits

If a contractor claims to have been at a specific location at a specific time, this can be verified, rather than simply taken at their word.

It is also useful in more traditional scenarios – insurance claims, litigation, and any situations where the authenticity of the footage is important.