# Partisia

> Turn digital identity into trusted action. Privacy-preserving credential checks powered by multiparty computation (MPC) and zero-knowledge proofs (ZKP), built for the EU Digital Identity Wallet era.

Partisia Applications ApS is a Danish identity-infrastructure company spun out of Aarhus University in 2008 by researchers who pioneered multiparty computation and zero-knowledge proofs. Partisia co-authored standards behind eIDAS 2.0. The platform lets verifiers check identity claims (age, country, accreditation, residency, eligibility) while users share only the attributes they choose to disclose; the underlying personal data stays encrypted. It aligns with GDPR, NIS2, and eIDAS 2.0. Based in Aarhus, Denmark.

## Products

- [SitePass](https://www.partisia.com/products/sitepass/): digital ID cards for construction sites, built for Denmark's ID-card law. Workers verify their identity with AltID before they arrive; the credential checks them in, records time on site, and opens the gates their access covers.
- [VisitorPass](https://www.partisia.com/products/visitorpass/): credential-based visitor management. Guests check themselves in from their own phones; the credential opens the doors their visit authorizes and leaves a record of who was on site and when.
- [AgeVerify](https://www.partisia.com/products/ageverify/): standalone age-assurance flow with no personal-data hand-off to the verifier.
- [Credential APIs](https://www.partisia.com/products/credential-apis/): issuance, verification, and wallet APIs with SDKs (TypeScript, Java, Go, Python) for building custom credential flows on the same MPC/ZKP primitives, deployable on cloud, Docker, or on-prem.

## Technology

- [Decentralized identity](https://www.partisia.com/technology/decentralized-identity/): decentralized identifiers, verifiable credentials, and zero-knowledge proofs: prove a claim without revealing the document behind it. Aligned with eIDAS 2.0 and the W3C VC/DID standards.
- [Multiparty computation (MPC)](https://www.partisia.com/technology/confidential-computing/): jointly compute over private inputs (including secure data collaboration / MPC+ for cross-organization analytics); each party learns the result and nothing else.
- [Blockchain](https://www.partisia.com/technology/blockchain/): a decentralized, immutable ledger that hosts MPC smart contracts; a contract can add a privacy layer parallel to the ledger by allocating MPC nodes that compute on secret-shared inputs.
- [Know Your AI](https://www.partisia.com/technology/ai/): verifiable identity, delegation, and authorization for AI agents. Decentralized identifiers and zero-knowledge proofs composed into a trust framework for autonomous systems.
- [Partisia Quantum](https://www.partisia.com/technology/quantum/): MPC-based quantum-safe key distribution: keys split across independent nodes and never assembled at any single point, NIST PQC-compliant, pure software on existing infrastructure.

## Company

- [About Partisia](https://www.partisia.com/about/)
- [Blog](https://www.partisia.com/blog/)
- [Press](https://www.partisia.com/press/)
- [Contact](https://www.partisia.com/contact/)
- [Support / FAQ](https://www.partisia.com/faq/): answers to the questions we are asked most, about the company, the products, integration, privacy, and quantum-safe security.
- [Privacy policy](https://www.partisia.com/privacy/)

## Documentation

- [docs.partisia.com](https://docs.partisia.com): developer documentation, SDK references, integration guides.