The platform

We built the substrate.

Underneath every GoldenI product is one operating substrate — CORE. This is the short version; the deep one lives at core.golden-i.io.

56 services · 3 subnets · 5 AI channelsSOC 2 Type II · HIPAA · 42 CFR Part 2
What CORE does

Five things, inherited by every product.

Operators stay here. Technical builders click through to CORE for the architecture in depth.

01

Identity

Three-layer identity resolution and a universal patient ID across every product.

02

Permissions

Consent-governed access, enforced at read time as a live decision — not a stored copy.

03

Audit

Append-only, immutable event capture. Who knew what, when, replayable forever.

04

AI governance

Five governed channels. Every prompt, output, and source event captured and attributable.

05

Clinical enforcement

Protocols evaluated in real time at the point of care. Guidance, never hard stops.

The three subnets

Identity, clinical fact, and governance never share a ledger.

Each class of event anchors on its own blockchain subnet. A breach of one reveals nothing about the others.

PII subnet

Identity events

Who someone is — resolved to a universal patient ID, anchored apart from any clinical fact.

PHI subnet

Clinical events

What happened in care — immutable, time-ordered, never joined to identity at rest.

Compliance subnet

Governance events

Who saw what, under which consent, governed by which protocol — itself anchored.

What's underneath the product

You see a product. You stand on a substrate.

When a clinician closes a visit in CURIS, the same events draft the claim in REMITUS, update the registry, and anchor the audit trail — because all of it reads and writes one event shape on CORE.

That is why a claim can cite the exact protocol event that authorized it, years later, on demand. The product is the surface. The substrate is the advantage.

Read the full CORE architecture →
Read more

CORE is sold separately, to builders.

If you're evaluating whether to build on GoldenI rather than from scratch, the technical surface is core.golden-i.io — the deepest documentation of the substrate we publish.

Go to CORE →