# Relationship history for MSHA mine 0103623

Current hierarchy: **Randall Jason Hyatt → RANDALL JASON HYATT, INC. → PERDUE HILL 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Randall Jason Hyatt → PERDUE HILL PIT; 2001-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RANDALL JASON HYATT, INC. → PERDUE HILL PIT; 2025-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall Jason Hyatt → RANDALL JASON HYATT, INC.; 2025-05-19 to current/open; source msha-controller-operator-history