# Relationship history for MSHA mine 4105025

Current hierarchy: **Erdman W  Peters → Pro Aggregate → Crusher 101**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Pro Aggregate → Crusher 101; 2013-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Erdman W  Peters → Crusher 101; 2013-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Erdman W  Peters → Pro Aggregate; 2013-07-10 to current/open; source msha-controller-operator-history