# Relationship history for MSHA mine 3402196

Current hierarchy: **Celio  Calvillo → Southeastern Stone → Paul Pit # 2**

- 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:** Southeastern Stone → Paul Pit # 2; 2019-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Celio  Calvillo → Paul Pit # 2; 2019-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Celio  Calvillo → Southeastern Stone; 2019-08-01 to current/open; source msha-controller-operator-history