# Relationship history for MSHA mine 3605546

Current hierarchy: **Joseph Tony → Universal Minerals Inc → #70 #80 #90**

- 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:** Universal Minerals Inc → #70 #80 #90; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph Tony → #70 #80 #90; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph Tony → Universal Minerals Inc; 1975-01-01 to current/open; source msha-controller-operator-history