# Relationship history for MSHA mine 4103723

Current hierarchy: **Jordan Paving Corp → Jordan Paving Corp → Jordan Crusher No 1**

- 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:** Jordan Paving Corp → Jordan Crusher No 1; 1992-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jordan Paving Corp → Jordan Crusher No 1; 1992-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jordan Paving Corp → Jordan Paving Corp; 1992-05-01 to current/open; source msha-controller-operator-history