# Relationship history for MSHA mine 2402396

Current hierarchy: **Bridger  Bischoff → Rock Solid, Inc. → Paradise Portable Mine**

- 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

- **controller_controls_mine:** Bridger  Bischoff → Paradise Portable Mine; 2001-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RamRock LLC → Paradise Portable Mine; 2005-02-16 to 2011-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Timothy J  Youde → Paradise Portable Mine; 2005-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy J  Youde → RamRock LLC; 2005-02-16 to 2011-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Rock Solid, Inc. → Paradise Portable Mine; 2011-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bridger  Bischoff → Rock Solid, Inc.; 2011-08-29 to current/open; source msha-controller-operator-history