AI runs on
proofs, not data.
An authentic data foundation for AI. Prove provenance, attributes, and track record cryptographically — without ever sharing raw data — so third parties can verify independently.
Proprietary cryptography, three values.
Without revealing the contents,
prove it is genuine.
Only the facts they need —
chosen, and handed over.
The record that remains
can be rewritten by no one.
Lemma rides on the work you already do.
Share quality and inspection records without exposing the contents.
Check suppliers' certificates and credit without holding the originals.
Fix the basis of AI decisions. Fits domestic-law needs like active cyber defense.
Run benefits, counters, and collection without seeing personal data.
By industry, by theme, by AI adoption too. Read in from every operational scene and the risks within it.
One foundation,
three doors in.
Civic · Critical · Compliance.
Three product lines tuned for public infrastructure, manufacturing, and regulated finance.
/pricing →Send proofs, not keys.
A ZK sign-in SDK that drops into any app or AI agent stack.
/seal →Run AI without holding keys.
Keyless auth. Per-call authority delegation. Works with x402 / MCP.
/trust402 →NEWS
Latest
From Proof of Intent to Verification of Grounding — Verifiable AI for the Agent-Payments Era
Read →New Models, Same Proof: Adding Kimi K2.7 Code and GLM-5.2 to the Attack Matrix
Read →From readable knowledge to verifiable knowledge — we've open-sourced the first implementation that adds provenance to OKF
Read →AI ATTACK SIM · 6 FRONTIER MODELS
The strongest AI turned attacker. Only proof stops it.
See the results →Critical Brief
The frontier of AI × trust, watched by Lemma.
Browse all →Hong Kong deepfake video-call fraud: a real-time deepfake of the CFO and every colleague drove a ~$25.6M transfer — seeing a face and hearing a voice no longer proves the person is actually present (Hong Kong Police / Arup)
TRY LEMMA
See if it fits — verify it.
In a 30-minute conversation, verify Lemma's capabilities and how it fits your operations. No disclosure of sensitive data (personal or confidential) required.
For Developers Run the SDK now. Seal's ZK sign-in, in a few lines from the Dashboard.