# Relationship history for MSHA mine 4105797

Current hierarchy: **Alberto Hinojos  Jordan; Albert  Jordan; Luis Hinojos  Jordan; Alejandro → Jordan Concrete → Santa Barbara**

- 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:** Luis Hinojos  Jordan et al → Santa Barbara; 2021-08-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jordan Concrete → Santa Barbara; 2025-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Luis Hinojos  Jordan et al → Jordan Concrete; 2025-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alejandro  Jordan et al → Jordan Concrete; 2025-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Jordan et al → Jordan Concrete; 2025-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alberto Hinojos  Jordan et al → Jordan Concrete; 2025-03-25 to current/open; source msha-controller-operator-history