# Relationship history for MSHA mine 1519174

Current hierarchy: **Timothy R  Dye → D & D Mining, Inc. → #4**

- 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:** Timothy R  Dye → #4; 2004-12-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** D & D Mining, Inc. → #4; 2008-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy R  Dye → D & D Mining, Inc.; 2008-01-10 to current/open; source msha-controller-operator-history