Evidence you can check
Capture photos and video, preserve their signed files, and inspect the integrity checks in one place. Keep a clear record of what was captured and whether it has changed.
CAPTURE
Evidence captured on device
GPS, accelerometer, and device attestation are embedded at the moment of capture.
SEAL
Provio seals with hardware cryptography
Your device's Secure Enclave signs each package with ECDSA P-256.
VERIFY
Anyone can verify independently
9-step verification runs entirely in the browser. Nothing is uploaded.
BENEFIT
Review the record before sharing
Inspect integrity checks and capture details. Legal admissibility depends on the evidence and jurisdiction.
Darling Harbour
Why Provio
From zero to verified in minutes
Everything you need to capture, prove, and defend digital evidence.
Hardware sealed
ECDSA P-256 signatures use your device's Secure Enclave to help verify the signed content.
Chain linked
SHA-256 hash chains connect evidence sequentially. Tampering breaks the entire chain.
Authority timestamped
When an independent timestamp is available and verified, it provides a signed record of when the file hash existed.
Zero-trust verify
9-step verification runs in the browser. Anyone can verify — nothing is uploaded to our servers.
Construction
Site inspectors capture photos and video, preserve signed files, and review their capture details and verification results before sharing.
Insurance
Claims teams can check an evidence package in the browser and review its recorded context before sharing it with an adjuster.
Legal
Legal teams can inspect file hashes, signatures and recorded sequence links alongside their own custody records. These checks do not establish that a captured claim is true.
How It Works
Nine cryptographic checks run entirely in your browser. Nothing is uploaded to our servers.
Your App
iOS · Web
Provio SDK
Capture · Attest · Seal · Chain
Provio Engine
Cryptographic Pipeline ·
Hash Chain Orchestration
Secure Enclave
ECDSA P-256 · Device Keys
Verification
Browser · Integrity checks
Signed Capture
Captured files are hashed with SHA-256 and signed. Verification checks whether the signed content has changed.
Hash Chain Integrity
An append-only hash chain links every piece of evidence into a tamper-evident sequence. Altering one entry breaks the entire chain.
EVP Evidence Packages
Self-contained archives bundle media, metadata, cryptographic signatures, and hash chain entries into a single verifiable package.
Offline-First Design
Evidence is sealed on-device using the Secure Enclave. No network connection is required at the point of capture.
Cross-Platform Verification
A 9-step verification pipeline runs entirely in the browser using the Web Crypto API. Anyone can verify evidence without installing software.
RFC 3161 Timestamps
A verified independent timestamp can show when a file hash existed. The package records whether a timestamp is available.
Pricing
Core capture and verification are available within the free plan limits. Available upgrades and localized prices are shown in the app before you choose a purchase.
Provio scales with teams of any size in any industry.
Built for real-world evidence
Use Provio to preserve files and inspect their integrity. Verification does not guarantee legal admissibility.
Site documentation
Record progress photos and the capture details available with the permissions you allow.
Litigation support
Keep original files, signatures and verification results together for a legal professional to assess.
Claims evidence
Inspect file integrity and available capture details when reviewing a claim.