ProofSnap - Digital Evidence

Screenshots can be challenged in court. ProofSnap makes your evidence tamper-proof.

One click captures any webpage as a blockchain-timestamped, digitally signed evidence package — court-ready under US Federal Rules of Evidence (FRE 901/902) and EU eIDAS Regulation 910/2014. 7-day free trial.

🛡️ Why ProofSnap Exists
A regular screenshot can be forged in 30 seconds using browser DevTools. In United States v. Vayner, a federal court rejected a Facebook screenshot for lack of authentication. Screenshots lack metadata, timestamps, and chain of custody — making them easy to challenge in insurance disputes, harassment cases, and IP enforcement. ProofSnap ensures your evidence holds up.

🛡️ Provenance Certificate — Anti-Deepfake Protection
Every capture automatically includes a Provenance Certificate — a standalone PDF proving your evidence was captured live from a real web browser, not AI-generated or manipulated. Eight independent integrity checks verify device authenticity, time sources, DNS resolution, and TLS certificates. Built for the deepfake era — meets proposed FRE 707 (2025) and EU AI Act Article 50 (August 2026) standards. No other self-service evidence tool offers this.

🔒 Five Layers of Protection
1. Auto-refresh before capture — eliminates client-side DOM manipulation
2. SHA-256 cryptographic hash — any modification is instantly detectable
3. RSA-4096 digital signature — proves the evidence was not altered
4. Bitcoin blockchain timestamp — decentralized, independently verifiable proof of existence
5. EU eIDAS Qualified Timestamp — legal presumption of accuracy across 27 EU member states (Enterprise and Company plans)

Every package also includes a forensic chain of custody compliant with ISO/IEC 27037:2012 and device integrity scoring.

📦 Every Evidence Package Contains:
Full-page or visible-area screenshot, complete HTML source code, extracted DOM text, forensic metadata (URL, timestamps, TLS certificate, cookies), SHA-256 manifest with RSA-4096 digital signature, Bitcoin blockchain proof (.ots file), forensic log with tamper-evident hash chain, chain of custody document (ISO/IEC 27037:2012), Provenance Certificate PDF, and a court-ready evidence report. Exported as a portable, self-contained ZIP.

🎥 Optional Video Recording
Record the entire capture process as a video included in the evidence package — proving exactly what happened during evidence collection. The video is automatically hashed, signed, and blockchain-timestamped along with all other files. Enable with a single toggle before capture.

📁 File Certification
Certify the existence of any file — drag and drop documents, images, contracts, or any digital asset. Each file receives a SHA-256 hash, RSA-4096 signature, Bitcoin blockchain timestamp, and a Provenance Certificate PDF. Batch certification supported. Enterprise plans include EU eIDAS qualified timestamps. Your file never leaves your device — only the cryptographic hash is sent to timestamp servers.

💰 SnapPack — Pay Per Capture
Don't need a monthly plan? Buy 10 evidence captures for $4.99 — no subscription, no commitment. Credits never expire. Includes full evidence package with blockchain timestamps. Buy more anytime.

📱 Social Media & Messaging Forensics
Content disappears in seconds. ProofSnap freezes it with cryptographic proof. Optimized capture for major messaging and social media platforms including WhatsApp Web, Telegram, Discord, and Slack. Captures server-delivered content, not user-modified DOM. Full-page scroll capture or visible-area only (GDPR compliant).

🤖 AI Accountability
If a chatbot provides legally binding but incorrect advice, ProofSnap freezes the output with cryptographic proof of what was said, when, and where. Essential for AI liability disputes and EU AI Act compliance.

⚖️ Legal Foundation
FRE 901/902 — satisfies US federal evidence authentication requirements
FRE 902(14) — self-authenticating electronic evidence with certified hash values
FRE 707 (proposed 2025) — Provenance Certificate meets emerging standards for AI-generated evidence
eIDAS Art. 41 — electronic timestamps have legal effect across all EU member states
EU AI Act Art. 50 — content provenance requirements (August 2026)
ISO/IEC 27037:2012 — chain of custody follows international forensic standards

🔹 Who Uses ProofSnap
Lawyers and legal teams for litigation and dispute resolution. Airbnb hosts for protection against guest claims. Investigators and journalists for preserving deleted content. HR professionals for documenting workplace issues. Insurance teams for liability dispute documentation. Compliance officers for regulatory due diligence.

🏢 Plans
SnapPack — 10 captures for $4.99, no subscription required. Credits never expire.
Essential — captures with full evidence package and forensic documentation
Professional — adds blockchain timestamps for independent proof of existence
Enterprise — adds EU eIDAS qualified timestamps with legal presumption of accuracy, file certification (50/mo)
Company — team accounts with centralized license management and eIDAS timestamps per user
All subscription plans include a 7-day free trial.

🌍 Available in 21 languages.

✅ Free Trust Verifier
Anyone can verify ProofSnap evidence at getproofsnap.com/verify/index.html — entirely client-side, no account needed.

🔓 Open-Source Verification
The verification tool is open source (MIT license) at github.com/proofsnap/proofsnap-verify. Opposing counsel can audit every line of code and verify evidence independently.

ProofSnap — Capture. Timestamp. Preserve. Comply.