What does the ZIP archive contain?

The ZIP archive contains screenshot.jpeg, metadata.json, page.html, evidence.pdf, domtextcontent.txt, forensic_log.json (ISO 27037 forensic log), chain_of_custody.json (chain of custody), manifest.json, manifest.sig, manifest.json.ots, and publickey.pem files for complete digital evidence.

Is ProofSnap evidence legally admissible?

ProofSnap generates forensically sound evidence with cryptographic proofs. Admissibility depends on jurisdiction and specific legal requirements. Consult legal professionals for specifics.

How does ProofSnap Trust Verifier validate ZIP archive files?

The verifier unpacks the ZIP, reads manifest.json (which lists files and their expected SHA-256 hashes), computes SHA-256 for each file, and compares results to the manifest to report valid or invalid files.

How to manually verify manifest.json.ots on OpenTimestamps.org?

Extract the ZIP, locate manifest.json and manifest.json.ots, then use OpenTimestamps.org to upload the .ots proof and the manifest file. The site will indicate whether the timestamp proof is valid and anchored to the blockchain.

How to manually verify file validity from a ZIP archive?

Extract the ZIP, open manifest.json to get the expected SHA-256 hashes, compute each file's SHA-256 (e.g., shasum -a 256 on macOS/Linux or Get-FileHash -Path -Algorithm SHA256 in PowerShell) and compare the computed hashes to the manifest entries.

ProofSnap is a Chrome extension that captures web pages as legal evidence with blockchain timestamping, ensuring the authenticity and integrity of digital evidence.

How does blockchain timestamping work?

ProofSnap uses OpenTimestamps to create cryptographic proofs of when screenshots were taken, providing irrefutable evidence that cannot be tampered with.

Is ProofSnap free to use?

ProofSnap offers a 7-day free trial (credit card required). After the trial, you can choose from Professional and Enterprise plans.

What information does ProofSnap collect?

ProofSnap operates on a zero-knowledge architecture. All captured evidence (screenshots, HTML, metadata) is processed and stored exclusively on your local device. We collect only account data (email, password via Firebase), payment data (via Stripe), and anonymous usage statistics. We never collect or store your captured evidence.

How does ProofSnap protect my data?

All evidence is processed and stored locally on your device. Our servers never receive, store, or have access to your captured content. Only cryptographic hashes are transmitted for blockchain timestamping. We implement industry-standard security for account and payment data.

Can I delete my data from ProofSnap?

Yes, you have the right to access your personal data, request deletion of your data, opt-out of data collection where applicable, and uninstall the extension at any time.

Does ProofSnap share my data with third parties?

ProofSnap uses Firebase for authentication, Stripe for payments, AWS for backend functions, and OpenTimestamps for blockchain timestamping. Only account data, payment data, and cryptographic hashes are shared with these providers. Your captured evidence never leaves your device.

Is ProofSnap GDPR compliant?

Yes, ProofSnap respects user privacy rights including the right to access, delete, and opt-out of data collection in compliance with GDPR and other privacy regulations.

Privacy Policy: ProofSnap

Name: ProofSnap
Price: 8.99 USD
Rating: 4.8 (127 reviews)
Author: ProofSnap

Last Updated: February 8, 2026

Effective Date: February 8, 2026

1. Introduction

ProofSnap ("we", "our", or "us"), operated by Software Innovations Group LLC, is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information. Unlike traditional web services, ProofSnap is built on a Zero-Knowledge architecture, meaning we prioritize keeping your evidence data under your exclusive control.

2. Information We Collect

2.1 Personal Information

We collect only the minimum data necessary to manage your account and subscriptions:

Email Address: For account authentication, billing notifications, and critical support.
Payment Information: Processed securely via Stripe. We do not store or have access to your credit card details.
Account Credentials: Encrypted passwords managed via Firebase Authentication.

2.2 Captured Evidence Data (Zero-Knowledge Policy)

We do NOT collect, view, or store your captured evidence.

Local Processing: Screenshots, HTML code, DOM content, and metadata are generated and stored locally on your device.
No Server Upload: Our servers do not receive your evidence packages.
Cryptographic Hashes: Only a SHA-256 hash (a unique digital fingerprint that cannot be used to reconstruct the original data) is transmitted to our servers to facilitate blockchain timestamping via OpenTimestamps.

2.3 Usage Data

To improve the Extension, we collect anonymous usage statistics:

Extension Activity: Total number of captures (for subscription quota management), feature usage frequency.
Technical Logs: Chrome version, OS type, and anonymized crash reports.
Analytics: Anonymous usage patterns via Google Analytics (can be opted out).

3. How We Use Your Information

Authentication & Billing: To manage your access and process payments via Stripe.
Blockchain Verification: To generate immutable timestamps using the cryptographic hashes provided by your local Extension.
Customer Support: To respond to your inquiries.
Compliance: To prevent fraudulent use of our payment systems.

4. Data Storage and Third-Party Services

We use industry-leading providers to ensure your account data is secure:

Firebase (Google Cloud): Used for secure authentication and account management. (US-based, GDPR compliant).
Firebase Privacy Policy
Stripe: All financial transactions are handled under Stripe's PCI-compliant infrastructure.
Stripe Privacy Policy
AWS: Used for serverless backend functions (Lambda).
AWS Privacy Policy
OpenTimestamps: Decentralized blockchain timestamping; no personal data is shared with the blockchain.

5. Your Rights and Choices

Access & Deletion: You can delete your account at any time. Upon deletion, your personal data is removed from our databases within 30 days.
Local Data Control: You are the sole custodian of your evidence. You can delete local captures by managing the Extension's local storage or uninstalling the Extension.
GDPR (EEA Users): We respect all rights under the GDPR, including the right to access, rectify, or erase your data. For inquiries, contact support@getproofsnap.com.
Opt-Out: You may opt-out of non-essential analytics through the Extension settings.

6. Data Security

We implement TLS 1.3 encryption for all data in transit and AES-256 for data at rest (account info only). Because we do not store your evidence, it cannot be compromised in the event of a breach of our servers.

7. Changes to This Policy

We may update this policy to reflect service changes. Material changes will be notified via email or an in-Extension alert 30 days prior to taking effect.

8. Contact Us

Software Innovations Group LLC
Media City, Dubai, UAE
Email: support@getproofsnap.com

By using ProofSnap, you acknowledge that you have read and understood this Privacy Policy.

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