Every CXU stored in the graph must include parent_assumption_ids as a list of strings representing chains of dependent assumptions so that assumption lineage can be tracked.

Every CXU stored in the graph follows this structure:

— PYRANA_Internal_Knowledge_Graph_Specification.md

parent_assumption_ids: list[str] # Chains of dependent assumptions

— PYRANA_Internal_Knowledge_Graph_Specification.md

CXU:

— PYRANA_Internal_Knowledge_Graph_Specification.md

### 5.1 CXU Anatomy (Recap)

— PYRANA_Internal_Knowledge_Graph_Specification.md