# Relationship history for MSHA mine 4502796

Current hierarchy: **Dan  Fiorito → Fiorito Brothers Inc → D-193 Pit**

- 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:** Dan  Fiorito  et al → D-193 Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fiorito Brothers Inc → D-193 Pit; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Fiorito  et al → Fiorito Brothers Inc; 1980-03-01 to current/open; source msha-controller-operator-history