# Relationship history for MSHA mine 4002342

Current hierarchy: **Page Danny → Page Coal Company → Jordan #1**

- 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:** Page Coal Company → Jordan #1; 1977-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Page Danny → Jordan #1; 1977-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Page Danny → Page Coal Company; 1977-11-01 to current/open; source msha-controller-operator-history