# Relationship history for MSHA mine 1002059

Current hierarchy: **Shane  Kaufman → Shane Kaufman → Shane Kaufman 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:** Shane  Kaufman → Shane Kaufman Pit; 2000-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shane Kaufman → Shane Kaufman Pit; 2004-08-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shane  Kaufman → Shane Kaufman; 2004-08-04 to current/open; source msha-controller-operator-history