# Relationship history for MSHA mine 4003345

Current hierarchy: **Michael  Rector; John  Rector → BMJ Stone → Pugh Quarry**

- 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:** BMJ Stone → Pugh Quarry; 2009-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Rector  et al → Pugh Quarry; 2009-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Rector  et al → BMJ Stone; 2009-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Rector  et al → BMJ Stone; 2009-03-10 to current/open; source msha-controller-operator-history