Exchange trust across organisations and borders
TrustExchange federates identity, trust records and evidence across parties using self-certifying primitives — so an agent trusted in one place is recognised in another, with no call home.
The problem
Trust stops at the organisational border
An AI trusted in one organisation or country is unknown in the next. Without federation, every boundary re-introduces the identity, evidence and certification problem from scratch.
TrustExchange
A global, self-verifying trust network
TrustExchange federates trust across parties through portable did:key identities, HCS-28 trust records, signed policy bundles and Merkle evidence proofs — each carrying its own proof. Recognition is by math, not by a central authority, and composes with the Hashgraph Online (HOL) ecosystem.
What TrustExchange does
Portable Identity
Self-certifying did:key / did:hedera recognised across boundaries.
HCS-28 Trust Records
Issue and consume signed trust scores across the ecosystem.
Signed Policy Bundles
Enforce a mandate from any source, offline, no live call to the issuer.
Evidence Proof Exchange
Share Merkle inclusion proofs against an anchored root — not raw data.
HCS-2 Registry Federation
Discover and trust identities across federated registries.
HOL Interoperability
Compose with Hashgraph Online standards and external trust signals.
How it fits together
TrustExchange federates the identity, policy-bundle and evidence layers over Hedera and HOL — every artefact is independently verifiable offline.
Where it applies
- Recognise an agent across government agencies
- Consume a partner's HCS-28 trust score in your own policy
- Exchange evidence proofs across borders, not raw records
- Enforce a policy bundle offline, anywhere
Works with your stack
What good looks like
AI trust
no call home
with HOL / HCS-28
See TrustExchange in action
Book a demo, or open the live product in the app to see it establish trust across your AI systems.