Prove What Your Git Repository Contained — And When.
Turn Git Repository Snapshots into Verifiable Legal & Audit Evidence.
Turn Repository History into Verifiable Legal & Audit Exhibits in Seconds
Three simple commands seamlessly integrated into standard developer muscle memory.
Seal Repository State
Computes the Merkle DAG across all blobs and anchors an atomic RFC 3161 public TSA timestamp.
$gproof seal
✓ DigiCert RFC 3161 notarized
Verify Offline Math Proof
Cryptographically validates commit integrity and the TSA certificate chain without internet access.
$gproof verify
[PASS] Author Ed25519 signature
Export FRE 902 PDF
Compiles a self-authenticating vector PDF certificate with a 28 U.S.C. § 1746 declaration.
$gproof cert
authorship-certificate.pdf
Built for Engineers. Grounded in Evidence Law.
Enterprise source code protection without exposing private repositories.
RFC 3161 Notarization
Direct cryptographic timestamping against DigiCert and Sectigo Time Stamp Authorities (TSA). Cryptographically verifiable evidence that code existed at an exact second.
Merkle DAG Provenance
Deterministic Git tree hashing using SHA-256 leaves. Cryptographic proof of commit content and directory structure with zero data leaks.
Native FRE 902 PDF Engine
Direct vector rendering of exhibits formatted to support self-authentication under 28 U.S.C. § 1746 and FRE 902. A § 1746 declaration tied to a cryptographic hash and atomic timestamp.
100% Offline & Open Verifier
Your source code never leaves your machine. The standalone verifier is 100% open source under MIT. Zero telemetry, zero analytics, zero external API dependencies.
Automated Git Hooks
One-command install for `pre-commit` and `pre-push` hooks. Automatically generates tamper-proof `proof.json` attestation before every push.
gproof & git proof CLI
Single statically linked Go binary. Native Git plugin integration. Self-upgrades in milliseconds with cryptographically signed release manifests.
Grounded in United States Federal Evidence Law
A statutory declaration, tied to a hash, tied to a public timestamp—the standard an engineer and a lawyer can stand on.
Certified Electronic Records & Digital Hashes
"A record generated by an electronic process or system that produces an accurate result... [or] data copied from an electronic device, storage medium, or file, if authenticated by a process of digital identification."
Business Records Exception to Hearsay
"The original or a copy of a domestic record that meets the requirements of Rule 803(6)(A)-(C)... kept in the course of a regularly conducted activity... as shown by a certification of the custodian."
Unsworn Declarations Under Penalty of Perjury
"Wherever, under any law of the United States... any matter is required or permitted to be supported by sworn declaration... such matter may be supported by unsworn declaration in writing under penalty of perjury."
Human Authorship & M&A Chain-of-Title Defense
Following the Supreme Court ruling in Thaler v. Perlmutter and U.S. Copyright Office guidance, purely machine-generated code possesses zero copyright protection; applicants must demonstrate iterative human control, modification, and arrangement.
FRE 902 Banknote-Grade Vector Certificate
Self-authenticating electronic record format with 28 U.S.C. Sec. 1746 declaration, Merkle DAG root, and DigiCert RFC 3161 notary medallion seal. Designed to support electronic-evidence authentication workflows.
Dynamic Authorship Badges for READMEs
Real-time SVG shields showing verified commit authorship and timestamp notarization.
Embed in markdown: [](https://gitproof.legendrail.com)
Automate Cryptographic Sealing in CI/CD
Drop a 10-line workflow into your repository. Automatically notarize every release tag or main branch merge with RFC 3161 timestamps.
name: GitProof Notarization
on:
push:
tags: ['v*']
jobs:
prove:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Cryptographic Provenance Seal
uses: LEGEND-Rail/gitproof-action@v1
with:
license-key: ${{ secrets.GITPROOF_KEY }} # Optional Pro/Team license keylicense-key for Pro/Team unwatermarked certificates.Transparent Pricing for Developers & Teams
Open-source verification is free forever. Upgrade to Pro for unwatermarked FRE 902 court exhibits and Corporate LLC binding.
- PDF carries the red Community evaluation watermark.
- Identity associated with the configured Git author email.
- Cryptographic proof and verification workflow.
- Clean, unwatermarked vector PDF.
- Configurable
--entity "Your Company LLC". - Optional § 1746 declaration template for review and execution.
- Retroactive export from prior Community proofs.
Community
Individual developers evaluating open cryptographic authorship proofs.
- ✓ Open-source CLI seal & 100% offline verifier
- ✓ Public RFC 3161 TSA notarization (
proof.json) - ✓ Merkle DAG tree integrity & Ed25519 signing
- ✓ Local SVG README status badge generation
- ◐ Watermarked Evaluation Specimen PDF preview
- ✓ Upgrade anytime to unlock unwatermarked Corporate PDFs
Pro Solo Lifetime
Perpetual license for GitProof Pro v1.x, with an offline license key.
- ✓ Unwatermarked Pro PDF exports.
- ✓ Corporate entity binding.
- ✓ Retroactive export from historical Community proofs.
- ✓ Multi-TSA notarization (DigiCert + Sectigo).
- Client milestone and handoff records: Attach a timestamped repository snapshot and verification report to client delivery packages and handoff records.
- M&A and AI-assisted development provenance: Preserve timestamped records that may support software provenance and chain-of-title diligence. GitProof does not independently establish human authorship or copyright ownership.
-
Retroactive Pro export: Generate an unwatermarked Pro-formatted PDF from a previously sealed Community
proof.json. The original timestamp remains unchanged, and the new certificate's generation date is shown separately.
Future major versions and support entitlements are subject to the published license terms.
Team & Agency
Engineering teams needing centralized co-authorship and compliance audits.
- ✓ Everything in Pro Solo, plus:
- ✓ Agency Milestone Protection: Co-signed handoffs for up to 10 devs
- ✓ Centralized enterprise audit log & litigation affidavit templates
- ✓ Dedicated TSA priority queue
- ✓ Evidentiary Litigation Support Package (affidavit templates, chain-of-custody brief for counsel)
- ✓ Direct developer Slack / Discord support