Give AI proven facts.
ZK-proof infrastructure makes every AI decision verifiable.
Four cryptographic capabilities. One Trust Layer.
Prove data lineage cryptographically.
Verify the basis of every AI decision.
Verify authority, delegation, and transactions.
Selectively disclose only the required attributes.
Trust402
A Trust Layer on top of x402. Autonomous agent payments, verifiable by ZK proof.
Try the demoCryptographic proof,
for every workflow.
On a single cryptographic foundation, Lemma serves each work domain with use-case-tuned products.
AI audit, KYC,
and AML for finance.
Make AI decision evidence tamper-proof. Prove customer attributes without sharing the underlying data.
Supply chain &
ESG for manufacturing.
Tamper-proof provenance across multi-tier suppliers. Support for CBAM, EUDR, and DPP compliance.
Transactions and
delegation for agents.
Cryptographically verify the authority, payments, and delegation of agents running on x402 or MCP.
Provenance and citation
for RAG and LLM stacks.
Pin the provenance of source documents at ingest. Guarantee citation authenticity at response time.
Recent thinking.
Verifiable AI, cryptographic provenance, selective disclosure — where technology and decision-making intersect.
All articles → Models change.
Proofs remain.
Make Lemma your trust infrastructure.