# Relationship history for MSHA mine 4104102

Current hierarchy: **Paul M Leighton → Paul'S Pit → PAUL'S 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:** Paul M Leighton → PAUL'S PIT; 1990-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paul'S Pit → PAUL'S PIT; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul M Leighton → Paul'S Pit; 1999-08-01 to current/open; source msha-controller-operator-history