# Relationship history for MSHA mine 3901628

Current hierarchy: **Stuart W Goldsmith → Stuart Goldsmith → Lazy Beaver**

- 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

- **operator_operates_mine:** Stuart Goldsmith → Lazy Beaver; 2017-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stuart W Goldsmith → Lazy Beaver; 2017-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stuart W Goldsmith → Stuart Goldsmith; 2017-07-14 to current/open; source msha-controller-operator-history