# Relationship history for MSHA mine 4104354

Current hierarchy: **Gene  Sirizzotti; Tory  Sirizzotti → G. T. Sirizzotti, LTD → 281 Cibilo Creek 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

- **operator_operates_mine:** G. T. Sirizzotti, LTD → 281 Cibilo Creek Pit; 2002-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gene  Sirizzotti  et al → 281 Cibilo Creek Pit; 2002-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gene  Sirizzotti  et al → G. T. Sirizzotti, LTD; 2002-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tory  Sirizzotti  et al → G. T. Sirizzotti, LTD; 2002-04-08 to current/open; source msha-controller-operator-history