# Relationship history for MSHA mine 0500531

Current hierarchy: **Belisle Randy → Randy Belisle → Slide Group**

- 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:** Randy Belisle → Slide Group; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Belisle Randy → Slide Group; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Belisle Randy → Randy Belisle; 1950-01-01 to current/open; source msha-controller-operator-history