# Relationship history for MSHA mine 5001748

Current hierarchy: **State Of Alaska → State of Alaska D.O.T. → Fahr Crusher # 34396**

- 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

- **controller_controls_mine:** State Of Alaska → Fahr Crusher # 34396; 2002-05-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** State of Alaska D.O.T. → Fahr Crusher # 34396; 2002-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** State Of Alaska → State of Alaska D.O.T.; 2002-06-21 to current/open; source msha-controller-operator-history