Give AI
proven facts.
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.
Enterprise
Choose by sector — three plans.
Pick the plan that fits your sector; we tailor and build it with you.
Turn front-desk, benefits, and civic-participation records into data you can trust AI with.
Learn more → Lemma Critical Critical infrastructure & manufacturingTurn quality, inspection, and supply-chain records into data you can trust AI with.
Learn more → Lemma Compliance Finance & FinTechPut identity and transaction data to work for AI — without hoarding personal information.
Learn more →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)
See if it fits — verify it.
In a 30-minute conversation, see how it fits your operations. No disclosure of sensitive information required.