# Relationship history for MSHA mine 2602554

Current hierarchy: **Scott  Whipple → Legacy Rock Inc → Triple X**

- 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:** Scott  Whipple → Triple X; 2001-08-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Legacy Rock Inc → Triple X; 2005-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Whipple → Legacy Rock Inc; 2005-01-18 to current/open; source msha-controller-operator-history