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Home/Use cases/Manufacturing & critical infrastructure
Manufacturing & critical infrastructure

Shipments that don't stall on the paperwork round-trip.

Whoever receives an inspection record or a measurement can confirm on the spot that it is genuine. The requests for originals, the witness inspections, the re-tests after submission — most of those round-trips go away.

Buyer's procurement system — incoming record check
Not tampered with
DOC HASH0x68d4…9f01
IssuerPlant No. 1
Recorded2026-07-28 09:12
SubjectLine 3 inspection record
Proof classProvenance
Signature matches Tamper check Issuer confirmed
The proof layer
is running now
Verification Center live 3 proof-backed data feeds Verification is free
See it for yourself →
01 — Why LemmaWhat delays a shipment is the checking that happens after you hand it over.

Inspection records and measurements are managed properly inside the plant. The problem starts downstream: the moment they reach a customer or a regulator, the receiving side has no grounds for calling them genuine. So originals get requested, witness inspections are scheduled, and the same content is explained again and again. What is in doubt is not the quality of the record — it is whether there is any way to check it.

The quality isn't in doubt.
There's just no way to show it.

02 — What changesThree things Lemma changes
Acceptance that never waits on a query

The receiving side confirms on the spot that the record has not changed since issuance. No follow-up request for the original, no phone call to verify.

Buyer's acceptance screen
Record receivedLine 3 inspection record
IssuerPlant No. 1
Query to issuerNot needed
VerdictNot tampered with
Records attached to a conformance report
Incoming inspection (2026-06)128Proof attached
In-process inspection (2026-06)1,204Proof attached
Shipping inspection (2026-06)96Proof attached
Calibration records (2026-06)14Proof attached
Audits, simplified

Every submitted record carries proof that it has not changed since issuance. You stop having to assume something might have been swapped.

Measurements that become data you can sell

Attach proof to equipment telemetry and measurements, and customers or research partners can check where the numbers came from before they use them. Supplying data becomes a product line.

GET /v1/suites/feeds/…/latest
// Returned with its proof { "value": 12.004, "unit": "mm", "measuredAt": "2026-07-28T09:12:00Z", "proof": { "docHash": "0x68d4…9f01" } }
03 — Threat casesWhat happened when the check became a formality.

Three cases from this area, drawn from the Lemma Critical Briefs. In each one the record existed — and did not match what had actually happened.

See every Brief in this area →

04 — How it worksThree steps, and that's it.
Issuing the proof
RecordLine 3 inspection record
IssuerPlant No. 1
What is sentHash only
Issued 0x68d4…9f01
01Attach a proof
Why it holdsChange one character in the record and it no longer matches the proof.
One API call from the inspection system. The body of the record is never sent.
The record you submit
Inspection certificate
Proof attached — verify here
02Hand it over
Why it holdsThe proof itself is about 200 bytes. How you deliver it is up to you.
The record carries a verification link. PDF or paper — nothing about how you send it has to change.
The customer's screen
Not tampered with
SignatureTamper checkIssuer
03They check it
Why it holdsThe receiving side settles it alone, without contacting the issuer.
Open the link and the verdict appears. No account, no key.
05 — Use casesHow it is used in this industry
06 — Latest newsAdoption, and what is moving in this area

See all blog posts →

Manufacturing

Where does the back-and-forth
after submission actually start?

We map your current submission flow with you and identify the records that generate the round-trip. It starts with a 30-minute call.