# Relationship history for MSHA mine 2402097

Current hierarchy: **Jim  Brown → Jim Brown → J.B.C.**

- 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:** Jim  Brown → J.B.C.; 1996-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jim Brown → J.B.C.; 1996-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Brown → Jim Brown; 1996-08-01 to current/open; source msha-controller-operator-history