Cryptographic Web Evidence
Capture tamper-proof, cryptographically verified records of any web content. Built for legal teams, compliance officers, and enterprise investigations.
The Problem
Courts, regulators, and opposing counsel know that screenshots can be fabricated in seconds. You need proof that's mathematically tamper-proof.
Any browser's DevTools can alter page content before capture. Screenshots prove nothing about what was actually served.
Pages get edited, deleted, or taken down. By the time you need the evidence, it may no longer exist.
File metadata, browser timestamps, and system clocks are all easily manipulated. Proving when content existed is as important as proving what it contained.
Who captured it? Was it altered after capture? Traditional methods leave gaps that opposing counsel will exploit.
We use TLSNotary, a cryptographic protocol that creates a mathematical proof of what a web server returned, when it returned it, and to whom. No trust required.
How It Works
Four steps to evidence that holds up in any proceeding.
Paste the web address you need to preserve. Any publicly accessible page works.
Our system establishes a TLS connection to the target server using a multi-party computation protocol.
A cryptographic proof is generated that mathematically binds the server response to the TLS session.
You receive an immutable, timestamped record with a downloadable proof file for independent verification.
Use Cases
FirmRecord serves teams where the cost of unverifiable evidence is measured in cases lost and compliance failures.
Preserve evidence of defamation, terms of service violations, IP infringement, or misleading representations before they disappear.
Document that your web properties, disclosures, and public statements meet regulatory requirements at specific points in time.
Capture trademark infringement, counterfeit product listings, or unauthorized use of copyrighted material with irrefutable proof.
Verify claims made on websites during M&A, investment due diligence, or vendor assessments. Create a permanent record of representations.
Preserve social media posts, forum discussions, or public records for internal investigations, insurance claims, or law enforcement referrals.
Document pre-existing conditions, policy terms, or third-party representations that are relevant to claims disputes.
Features
Everything your team needs to capture, verify, store, and present web evidence.
Multi-party computation ensures the proof is generated without any single party being able to forge it. Mathematically tamper-proof.
Every proof includes a cryptographically bound timestamp proving exactly when the content was served. No reliance on system clocks.
Every proof includes the complete HTML response from the server, preserving the exact content that was served including hidden elements.
Any third party can verify your proof using open-source tools. No dependence on FirmRecord's continued operation or testimony.
Integrate proof generation into your existing workflows. Automate bulk captures, scheduled monitoring, or event-triggered preservation.
Invite colleagues, assign roles, and organize proofs by matter or project. Full audit trail of who captured what and when.
Download proof files, HTML source, and formatted reports. Export in formats suitable for court filings and regulatory submissions.
All proofs are private by default. SOC 2 compliant infrastructure. Your evidence strategy stays between you and your team.
Pricing
Start with a 14-day free trial. No credit card required.
For solo practitioners and small teams getting started with verified web evidence.
Billed annually, or $179/mo monthly
For firms and teams that need volume, API access, and collaboration features.
Billed annually, or $479/mo monthly
For organizations that need unlimited capacity, compliance controls, and dedicated support.
Tailored to your requirements
FAQ
Screenshots can be trivially edited using browser developer tools before capture. The Wayback Machine is useful for historical research but does not produce cryptographic proofs and cannot verify server identity. FirmRecord generates a mathematical proof that is tied to the actual TLS session between our system and the target server, making it independently verifiable and tamper-proof.
FirmRecord proofs are designed to meet the evidentiary standards for digital evidence. The cryptographic proof establishes authenticity and integrity, the timestamp establishes when the content existed, and the ability for independent verification addresses chain of custody concerns. While admissibility ultimately depends on jurisdiction and the specific court, our proofs provide a significantly stronger evidentiary foundation than screenshots, printouts, or affidavits.
TLSNotary uses a multi-party computation (MPC) protocol to split the TLS session between a prover and a verifier. The prover communicates with the target web server while the verifier participates in the TLS handshake without seeing the actual content. This produces a proof that the server sent specific content over a genuine TLS connection, without requiring any cooperation from the target server. The proof is cryptographically bound to the server's TLS certificate, making forgery computationally infeasible.
Yes. Every proof file can be verified using open-source verification tools without any connection to FirmRecord. This means opposing counsel, a court-appointed expert, or any third party can independently confirm the proof's validity. No trust in FirmRecord is required.
Any publicly accessible web page served over HTTPS can be captured. This includes standard web pages, social media posts, forum discussions, product listings, terms of service, regulatory filings, news articles, and more. Pages behind authentication or bot protection may have limitations. Contact us for specific requirements.
Retention depends on your plan: 30 days for Starter, 1 year for Professional, and custom policies for Enterprise. However, you can download proof files at any time and store them in your own systems. The proof files are self-contained and can be verified independently at any point in the future.
Get Started
Start your 14-day free trial today. No credit card required. Your first 10 proofs are on us.