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Are you still receiving component provenance (country of origin, manufacturing lot, modification history) as Excel sheets and supplier-submitted PDFs, then aggregating internally? Does it feel like there's no structural way to detect tampering several tiers back?
In a world where autonomous procurement agents read component attributes and confirm orders, do those attributes carry the basis for "which issuer signed this, when, and untampered"?
- Procurement leads and supply chain management at manufacturers (automotive, electronics, industrial equipment)
- Quality assurance teams setting up traceability and recall-response evidence at the component level
- Teams building per-component provenance chains for Digital Product Passport (DPP) compliance
- Engineering leads rolling out autonomous procurement agents who need a cryptographic basis for pre-order verification
- Quality and security leads who need more than supplier declarations to guard against counterfeit and gray-market parts
How Lemma approaches it
Lemma lets every supplier tier issue component attributes (country of origin, manufacturing lot, modification history, quality test results) as issuer-signed attestations, with per-component cryptographic links to upstream tiers. Supplier names, contract terms, and cost data stay under the issuer's control. What crosses to the receiving side is only a ZK proof: "this part was produced in a certified Tier-3 facility," "this lot passed the specified test threshold."
Autonomous procurement agents can verify the per-component provenance chain as a ZK proof before confirming an order. Tampering attempts, counterfeit lot injection, and gray-market entry are structurally detectable as chain-integrity breaks — execution stops at the boundary without tracing all the way upstream manually.
How this provenance chain fits your procurement structure and DPP / traceability requirements is what we map out in a first conversation.
Lemma Discovery Call — Start with a 30-minute conversation
Tell us how your procurement is wired today and which component attributes carry the most provenance risk. We'll explore together whether Lemma's component-provenance chain could fit your operations. No supplier contracts or cost information required.
If we see a fit, we move to NDA and then into sector-specific attribute schema design, reference architecture, and PoC design.
A real-world example: counterfeit parts entering the assembly line
An automaker sources ECU power semiconductors through a Tier-1 electronics distributor, who buys from a Tier-2 semiconductor manufacturer, who in turn buys from a Tier-3 wafer processor. Each tier attaches lot numbers and quality-test results as PDF/Excel on shipment.
One month, a spike in field failures reveals that some shipment lots contained counterfeits — pin-compatible by part number, but off-spec. The Tier-1 supplier-submitted paperwork looks perfectly consistent. Lot numbers check out. Tracing upstream to Tier-2 and Tier-3 means asking each tier to re-submit documents in their own formats and reconciling against internal ledgers — weeks of work. By then, tens of thousands of vehicles are already in the field.
With Lemma in place, every component lot carries an issuer-signed provenance attestation at shipment, with cryptographic links to upstream tiers. An autonomous procurement agent verifies the chain as a ZK proof before the lot enters the assembly line — lots outside the Tier-3 wafer processor's certified scope are structurally rejected. The judgment runs on cryptographic integrity, not paper consistency.
Sector-specific component-class schema design, integration patterns with existing PLM, MES, and ERP systems (SAP, Siemens Teamcenter, etc.), and recall-response evidence-trail design are shared in the sector-specific kit we send after the consultation call.
Architecture in concept
Lemma does not replace your PLM, MES, ERP, or procurement system. We add one provenance-chain layer on the path where each tier issues component attributes and on the path where the assembler verifies them.
Each attestation carries the issuer's signature and a cryptographic link to the upstream tier, forming a per-lot chain. The assembler's autonomous procurement agent verifies the chain as a ZK proof, rejecting out-of-scope lots and tampered attributes at the boundary. At recall time, the impact scope is identified by walking the provenance chain — nothing more.
Sector-specific component-class schema design, integration patterns with existing PLM (Siemens Teamcenter, PTC Windchill, etc.), MES (Rockwell, Honeywell, etc.), and ERP (SAP, Oracle, etc.) systems, and DPP required-attribute schema design are detailed in the whitepaper and the post-call technical kit.
What Lemma cryptographically guarantees
- The issuer, issuance time, country of origin, manufacturing lot, modification history, and quality-test results of every component lot
- Per-component cryptographic links to upstream tiers, with counterfeit and tampering structurally detectable
- No disclosure of supplier identity, contract terms, or cost — and pre-order verification by autonomous procurement agents
- Recall-time impact scope identification, plus independent verification by regulators and third-party auditors
Ready to prove?
Talk to us about your use case. We respond within one business day.