# Relationship history for MSHA mine 3402210

Current hierarchy: **Chance M Gros; Kenneth Blaine Blaylock → Yote Stone → Yote #8**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Kenneth Blaine Blaylock et al → Yote #8; 2018-02-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Yote Stone → Yote #8; 2020-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth Blaine Blaylock et al → Yote Stone; 2020-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chance M Gros et al → Yote Stone; 2020-10-05 to current/open; source msha-controller-operator-history