time2prove
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Deeptech · Barcelona

The integrity of your digital content, certified from the moment of capture

TIME2PROVE computes the SHA-512 cryptographic fingerprint of photos, videos, audio and documents the moment they are captured, anchors it on Polygon's public blockchain and issues a forensic PDF certificate that any third party can verify independently.

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  • Audited by an independent forensic expert
  • Android beta live · iOS in development
  • Polygon public blockchain

The problem

In the age of generative AI, seeing is no longer enough

Deepfakes, synthetic images and manipulated documents make it increasingly hard to demonstrate that a piece of digital content is genuine. Journalism, insurance, forensic work and regulatory compliance need more than a file: they need to demonstrate that it has not been altered — and since when.

How it works

From capture to verifiable evidence, in seconds

  1. Capture

    Take the photo, record the video or audio from the TIME2PROVE app, or register a document or web content.

  2. Cryptographic fingerprint

    At that very moment the file's SHA-512 hash is computed: a unique, unrepeatable fingerprint of its content.

  3. Blockchain anchoring

    The fingerprint is timestamped on Polygon's public blockchain — a decentralised, immutable record.

  4. Forensic certificate

    You receive a PDF with date and time, geolocation where applicable, the hash and the blockchain transaction reference.

  5. Independent verification

    Anyone can confirm the file has not changed by comparing its hash with the anchored one — without depending on TIME2PROVE still existing.

Transparency

What we certify — and what we don't

Forensic credibility starts with precision: TIME2PROVE guarantees the technical integrity and chain of custody of your content; it does not interpret what the content shows.

We certify

  • That the content has not been altered since its capture or registration
  • The exact moment of registration, with a verifiable timestamp
  • The SHA-512 fingerprint and its anchoring on Polygon
  • The forensic metadata of the capture context (device and, where applicable, GPS)

We do not certify

  • The truthfulness of what the content shows
  • Whether a file was manipulated or AI-generated before entering the system
  • Interpretations or conclusions about the recorded facts

What you capture is certified exactly as it is, permanently. This honest distinction is what allows the evidence to hold up before a forensic expert.

Technology & security

Forensic-grade security, from the app to the blockchain

Ten certification modes cover photo, video, audio, documents and web content, with security built in from the capture device itself.

End-to-end SHA-512

The cryptographic fingerprint is computed on the device at the moment of capture. This hashing is already resistant to known quantum attacks.

Polygon public blockchain

Timestamped anchoring on a decentralised ledger that nobody — including us — can alter or erase.

Hardened Android app

FLAG_SECURE against screenshots, Google Play Integrity, ProGuard/R8 obfuscation, fake-GPS detection and NTP-verified time.

Forensic PDF certificates

Hash, transaction, timestamp and context metadata in a document designed for expert-witness work.

Privacy by default

Your content stays on your device: you decide what to certify and what to share. No cloud uploads by default.

Post-quantum roadmap

The signature layer (ECDSA) has a planned migration to ML-DSA (FIPS 204). Solid security today, with the future already mapped.

Independent forensic audit passed — March 2026

Android app in active beta · iOS version in development (SwiftUI + CryptoKit)

Use cases

Built for people who need evidence to hold up

Journalism & media

Verify the origin and integrity of material before publishing. A concrete defence against disinformation.

Insurers

Claim documentation with timestamp, geolocation and a verifiable fingerprint, straight from the scene.

Forensic & expert work

Technical chain of custody from the moment of capture, with certificates designed for expert reports.

Law firms

Rigorously documented evidence to better support a position in court or in a negotiation.

Public administration

Document traceability and integrity for digitisation processes with verifiable guarantees.

Regulatory compliance

A verifiable record of documents and evidence for audits, compliance and internal traceability.

Creators & photographers

Put the moment of creation of your work on record, with proof that doesn't depend on any platform.

Law enforcement

Documentation of interventions with demonstrable integrity, transparency and full forensic context.

Why TIME2PROVE

Certification at the moment of capture, not of the file afterwards

What sets us apart from other digital certification solutions:

  1. We certify at the moment of capture

    Content is certified when it is created, not after it has circulated. The window for manipulation shrinks to a minimum.

  2. Public blockchain, not a proprietary registry

    The proof lives on Polygon and can be verified even if TIME2PROVE ceased to operate. No vendor lock-in.

  3. Hardened native app

    Security starts on the capture device — not on a web upload form.

  4. Complete forensic certificates

    A PDF with hash, transaction, time and context: working material for forensic experts, not a mere receipt.

  5. Independently audited

    The product has been reviewed by a certified forensic IT expert, with the findings folded back into development.

Contact

Let's talk

TIME2PROVE is in active beta. If you'd like a personalised demo, technical information or to explore a collaboration, write to us.

Copy the address and send us an email from your usual mail client. We reply personally.