# Relationship history for MSHA mine 1002323

Current hierarchy: **Joseph  Carrabba → M J Mining Corp → Mary K Mine**

- 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:** M J Mining Corp → Mary K Mine; 2020-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Carrabba → Mary K Mine; 2020-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Carrabba → M J Mining Corp; 2020-06-22 to current/open; source msha-controller-operator-history