Supply Chain ESG Compliance
Prove CBAM, EUDR, and DPP compliance through a cryptographic chain of supplier attestations — without exposing trade secrets.
Three voices from the front line.
- Procurement / supply-chain management
“We want ESG / customs-compliance info from suppliers, but not their actual transaction data”
- Regulatory / compliance
“We must prove EUDR / CBAM compliance across tiers, but supplier confidentiality is the wall”
- ESG lead
“We want to chain-verify suppliers' carbon intensity and origin without collecting raw data”
Hand over the source, or just the facts?
Change what reaches the AI, and the leakage risk goes with it.
- supplier:
- ABC corp
- contract_value:
- 5,200,000 USD
- co2_intensity:
- 0.83 kgCO2/kg
- origin_country:
- BR…
- invoice:
- …
- holder:
- did:lemma:supplier-abc-corp
- issuer:
- did:lemma:authority-eu-cbam
- jurisdiction:
- EU
- licenseType:
- cbam-eudr-attestation
- disclosed:
- [cbam_compliant, eudr_compliant, carbon_lt_1.0]
- hidden:
- [contract_value, co2_intensity, invoice]
- lineageChain:
- [tier3, tier2, tier1]
- ZK verified:
- ✓ VALID
Each supply-chain tier issues ESG attributes (emissions, origin, labor conditions) with an issuer signature, chained upstream into a multi-tier proof. Material details, supplier names and contract terms stay with each company; what leaves is only the compliance proof — "below the CBAM threshold," "EUDR-compliant." Double counting is structurally detected by per-material binding, and an autonomous purchasing agent can verify this before confirming an order.
See the technical details ↗Choose on three criteria.
Only work that needs all three at once — pass without exposing, independent verification, tamper-proof — is Lemma's domain.
| Method | Pass without exposing | Independent verification | Tamper-proof |
|---|---|---|---|
| Access control only | △ | ✗ | ✗ |
| Masking / anonymization | △ | ✗ | ✗ |
| Encryption only | ✓ | ✗ | ✗ |
| Lemma (ZK proof)the only one with all 3 | ✓ | ✓ | ✓ |
What's next
We enter through rollout support and a PoC, and stay alongside you through to operations.
- A 30-minute review — identify where CBAM, EUDR, and DPP compliance work concentrates, and which tier breaks the evidence chain.
- Narrow to 1–2 decisions (results) to prove — e.g. "below the CBAM threshold," "EUDR-compliant" — the conformity facts passed to the regulator. Not the raw materials data or supplier contracts.
- Design connection and the attestation chain — connection to your procurement system / ERP / PLM, with each tier's issuer signature and cryptographic links to the upstream tier.
- Prove one path via a (quote-based) PoC — confirm one regulatory conformity decision works back across the multi-tier chain.
- Hands-on support from rollout through operations — existing plan tiers (Civic / Critical / Compliance) serve only as a cost reference; the setup and pricing are designed together.
Tell us one regulation where compliance work concentrates today, in the first 30 minutes. No disclosure of supplier contracts or cost required.
The bigger picture
The bigger picture this use case belongs to.
We map use scenarios across industries and workflows by the four axes.
See use scenarios for Regulatory Attribute in Solutions →TRY LEMMA
Run it yourself.
No sales call needed — start hands-on with Lemma's products.