Prove Authorship of Every Line of Code Before You Push.
A sworn statement, tied to a hash, tied to a timestamp from a public authority, proving your code existed at that second and never left the machine.
From Terminal Commit to Court-Ready Evidence 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 sworn 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). Irrefutable legal proof 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 self-authenticating certificates ready for execution under 28 U.S.C. § 1746 and FRE 902. A sworn statement tied to a hash that stands in court.
100% Offline & Private
Your source code never leaves your machine. Ed25519 offline license verification. 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 sworn statement, 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."
Sworn 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 Defense (AI Saturation)
Under U.S. Copyright Office regulations and Thaler v. Perlmutter, copyright protection strictly requires human intellectual conception; purely machine-generated code cannot be registered or defended.
FRE 902 Banknote-Grade Vector Certificate
Self-authenticating electronic record with 28 U.S.C. Sec. 1746 sworn declaration, Merkle DAG root, and DigiCert RFC 3161 notary medallion seal.
Dynamic Authorship Badges for READMEs
Real-time SVG shields showing verified commit authorship and timestamp notarization.
Embed in markdown: [](https://gitproof.legendrail.com)
Transparent Pricing for Developers & Teams
Start free forever. Upgrade for corporate legal entity protection and multi-TSA notarization.
Community
Individual developers seeking open cryptographic proof of authorship.
- ✓ Individual committer attestation
- ✓ Public RFC 3161 TSA notarization
- ✓ Native FRE 902 PDF certificate generation
- ✓ Merkle DAG tree integrity
- ✓ Local SVG status badge generation
- ✓ 100% offline verification engine
Pro License
Solo founders & independent creators defending high-value proprietary code.
- ✓ Everything in Community, plus:
- ✓ Custom corporate entity on FRE 902 PDF
- ✓ Multi-TSA redundant notarization (DigiCert + Sectigo)
- ✓ Offline Ed25519 token (CI/CD via
GITPROOF_KEY) - ✓ Automated S3 badge sync & GitHub Actions
- ✓ Unlimited repository seals
Team
Engineering teams needing centralized co-authorship and compliance audits.
- ✓ Everything in Pro, plus:
- ✓ Multi-author co-attestation signatures
- ✓ Centralized enterprise audit log
- ✓ Dedicated TSA priority queue
- ✓ Evidentiary Litigation Support Package (affidavit templates, chain-of-custody brief for counsel)
- ✓ Direct developer Slack / Discord support