In the wild.
70+ examples. One primitive. Across industries and data flows.
Polymonial does a lot. These use case examples show how — across the flows your business already runs (a CSV, an API, an EDI feed, a healthcare record exchange etc) and the problems it already faces (proving compliance, sharing data with partners, migrating off legacy crypto etc). Filter by your sector, the data flow you have today, the theme you care about, or the problem you’re trying to solve.
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EXA1
Finance
Tax Compliance
Prove your payroll meets every tax-authority rule — without sending a single employee record.
EXA9
Finance
Cross-Border Tax Reporting
Report to multiple tax authorities from one sealed dataset — each gets only its own answer.
EXA15
PublicSector
Sovereign Training Data Provenance
Prove your sovereign model was trained on cleared, in-country data — without revealing the corpus.
EXA23
PublicSector
Election Integrity
Every voter gets a receipt. The total is publicly verifiable. Ballot secrecy holds.
EXA27
Utilities
Critical Infrastructure Telemetry
Telemetry over IEC 61850 / DNP3 sealed at the device. NIS2 + IEC 62443 zone/conduit objectives met without the grid map ever leaving the operator's perimeter.
EXA34
Finance
Crypto Tax
Report capital gains to your tax authority — without exposing your full wallet history.
EXA45
Universal
Embedded Device PQC Readiness
Hundreds of millions of embedded devices — smart meters, connected vehicles, medical devices, industrial sensors, payment terminals — were deployed with classical cryptography baked into firmware. NIST has finalised the PQC standards (FIPS 203/204) and the migration runway has started. Polymonial is crypto-agile by design: each device migrates on its own schedule, and yesterday's signed reading still verifies tomorrow.
EXA59
Universal
Sealed Bids in Procurement
Procurement teams see all bids before deciding — Polymonial seals each bid so nobody peeks before the deadline.
EXA63
PublicSector
Trust-No-Party Audit
Prove the scheme hits its collection target — with the regulator re-verifying everything itself and trusting no operator.
EXA68
Universal
AI Act Compliance
Prove your AI system meets its regulatory obligations — without exposing the model or its training data.
EXA71
Logistics
Aviation Data Authenticity
Prove a data feed is genuine and unaltered — from the source, not the middleman.