# Relationship history for MSHA mine 0103387

Current hierarchy: **Royce G  Smith → R. G. Smith → Eduardo Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** R. G. Smith → Eduardo Pit; 2008-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Royce G  Smith → Eduardo Pit; 2008-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Royce G  Smith → R. G. Smith; 2008-03-28 to current/open; source msha-controller-operator-history