# Relationship history for MSHA mine 3609876

Current hierarchy: **Juan  Loja → JUAN BLUESTONE → JUAN BLUESTONE**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** William Stone → JUAN BLUESTONE; 2011-02-17 to 2017-03-22; source msha-controller-operator-history
- **controller_controls_mine:** Juan  Loja → JUAN BLUESTONE; 2011-02-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan  Loja → William Stone; 2011-02-17 to 2017-03-22; source msha-controller-operator-history
- **operator_operates_mine:** Juan Bluestone → JUAN BLUESTONE; 2017-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Juan  Loja → JUAN BLUESTONE; 2017-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan  Loja → Juan Bluestone; 2017-03-23 to current/open; source msha-controller-operator-history