# Relationship history for MSHA mine 3503042

Current hierarchy: **Times Mirror → Publishers Paper Company → Pankey 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:** Art  Braxling → Pankey Pit; 1950-01-01 to 2014-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Times Mirror → Pankey Pit; 1978-01-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Braxling & Braxling Inc → Pankey Pit; 1980-11-01 to 1981-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Art  Braxling → Braxling & Braxling Inc; 1980-11-01 to 1981-01-04; source msha-controller-operator-history
- **operator_operates_mine:** Publishers Paper Company → Pankey Pit; 1981-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Times Mirror → Publishers Paper Company; 1981-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronald D  Braxling → Pankey Pit; 2014-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald D  Braxling → Braxling & Braxling Inc; 2014-06-01 to 1981-01-04; source msha-controller-operator-history