# Relationship history for MSHA mine 1002230

Current hierarchy: **David M  Green; Marta K  Green → Bravita LLC → Bravita 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:** Bravita LLC → Bravita 2; 2012-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lewis Clifford  Eytchison et al → Bravita 2; 2012-07-31 to 2015-05-14; source msha-controller-operator-history
- **controller_controls_operator:** Lewis Clifford  Eytchison et al → Bravita LLC; 2012-07-31 to 2015-05-14; source msha-controller-operator-history
- **controller_controls_mine:** Marta K  Green et al → Bravita 2; 2015-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marta K  Green et al → Bravita LLC; 2015-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David M  Green et al → Bravita LLC; 2015-05-15 to current/open; source msha-controller-operator-history