# Relationship history for MSHA mine 3610343

Current hierarchy: **Adam D  Wilber → A. Wilber Stone Inc. → Wilber #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:** Adam D  Wilber → Wilber #4; 2019-05-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A. Wilber Stone Inc. → Wilber #4; 2020-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adam D  Wilber → A. Wilber Stone Inc.; 2020-09-01 to current/open; source msha-controller-operator-history