Jan 12, 2026: Source binary IDs added to all new resources

We’ve made a change to make it easier to trace FHIR resources back to the original source documents they were derived from.

All newly created FHIR resources now include the source binary ID in the meta.extension element. Below is an example showing how this extension appears on a resource:

"meta": {
  "extension": [
    {
      "url": "https://zusapi.com/data-acquisition/extension/source-binary",
      "valueReference": {
        "reference": "Binary/1a111aa1-222b-333-d444-555ee5ee555e"
      }
    },
    {
      "url": "https://zusapi.com/stream",
      "valueString": "third-party"
    },
    {
      "url": "https://zusapi.com/terminology/enrichment/sha256sum",
      "valueBase64Binary": "5am9leB@z364/mat23rda+u="
    },
    {
      "url": "https://zusapi.com/created-at",
      "valueInstant": "2026-01-02T01:30:20.705+00:00"
    }
  ]
}