HexxlaDB is an embedded DBMS that provides persistent, structured storage with spatial locality, contradiction tracking, and temporal validity. It organizes data on a hexagonal coordinate grid, enabling bounded-radius retrieval and neighborhood-based access. The system supports MVCC, provenance tracking, confidence scoring, and stores contradictions as seams rather than overwriting records. It includes an integrated HNSW index for vector similarity search. Primary use cases include long-term memory and context assembly for LLMs and agents, scientific research collaboration, and spatial algorithm implementations.