FHIR

Full Title or Meme

FHIR (Fast Health Interoperability Resources) is designed to enable information exchange to support the provision of healthcare in a wide variety of settings.
Pronounced "fire" it is primarily a data formatting and semantic set of standards.

HNS Digital GP Connect 1.2.0 on github FHIR standard for trial use (3) STU3
Health Level Seven (HL7®) International standards body HL7 FHIR and their wiki
Integrating the Healthcare Enterprise (IHE) wiki on Security
FHIR can be encoded in several formats, only json and xml seems to be in current consideration, but a jsonLD version has been published.
IHE Audit Trail and Node Authentication
Trust Label is a discoverable and computable set of metadata to convey asserted trust attributes of an exchange partner.

Current document exchange is focused on XDS or similar and the bulk of data is image data. There is little impetus to move quickly the HL7 FHIR.
Healthcare data for patients has been stored on desparate networks that could not interchange data which left patients without a permanent health record as the moved across the states.