We make trust a property of the file
OSDF Systems is a cybersecurity company building open infrastructure for trusted documents and data. Our mission is simple: integrity, provenance, and access control should travel with the file - not depend on the network around it.
Our mission
Documents move between people, organizations, and decades. The systems meant to protect them - perimeters, portals, and inboxes - fail the moment a file leaves them. We started OSDF Systems to fix that at the root: a document that proves its own safety, integrity, and origin, and enforces who may read it, wherever it goes.
We secure documents the way a modern security company would - data-centric, zero-trust, and verifiable - rather than treating them as files to be managed.
Typical verification
Open specification
First-class SDKs
Conformance profiles
Principles we build on
Security as a property, not a promise
Guarantees come from cryptography and design - verifiable by anyone, not taken on faith.
Radical transparency
We publish what is guaranteed, what is best-effort, and what is impossible. No misleading green badges.
Open by default
The format, schemas, and test vectors are open. Lock-in is incompatible with trust.
Built to outlast us
Documents must remain verifiable for decades - even offline, even if a vendor disappears.
A team of builders and skeptics
We bring together cryptographers, systems engineers, and security researchers who would rather tell you a hard truth than sell you a comfortable fiction. If that sounds like you, we're hiring.
The future of trusted documents
Bring cryptographic verification, verifiable provenance, and zero-trust access control to every document your organization creates and receives.