# Relationship history for MSHA mine 4703416

Current hierarchy: **Rod  Hansen → Hansen's Excavating & Construction → Hansens Excavating & Construction**

- 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:** Hansen's Excavating & Construction → Hansens Excavating & Construction; 2005-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rod  Hansen → Hansens Excavating & Construction; 2005-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rod  Hansen → Hansen's Excavating & Construction; 2005-04-21 to current/open; source msha-controller-operator-history