About
Building verifiable computing infrastructure for the AI era.
Mission
AI is writing an increasing share of the world's code. That creates a simple question: how do you know what's human and what's machine?
Invariant Systems builds infrastructure to answer that — with cryptography, not policy documents.
Our first product, AIIR (AI Integrity Receipts), is free, open-source, and runs entirely on your machine. It creates cryptographic receipts for every commit, recording whether AI tools were involved. One command. Zero dependencies.
Timeline
What we believe
- AI provenance is infrastructure, not a feature. Every company using AI code generation needs an audit trail. It should be as automatic as version control.
- Trust requires cryptography, not promises. Compliance documents are necessary but not sufficient. Tamper-evident receipts are.
- Open source builds trust. The core tool is Apache 2.0 because auditors need to inspect the mechanism, not just the output.
- Zero dependencies is a security decision. Every dependency is an attack surface. We chose none.
- Regulation is a forcing function, not an obstacle. The EU AI Act creates the market for verifiable AI infrastructure.
Team
Noah Erlwein — Founder & CEO
Want to join?
We're a small team building critical infrastructure. If you care about cryptography, developer tools, or AI accountability — we'd like to hear from you.
No open roles posted yet. Reach out anyway: noah@invariantsystems.io