The registry states which types of administered items it holds, drawn from the types Parts 31, 32, 33, 34 and 35 and ISO/IEC 19763 define (data elements, concepts, value domains, classification schemes, concept systems, data sets, computable data, models, process and service models, forms) or locally defined types.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.