# Relationship history for MSHA mine 0203537

Current hierarchy: **Mike  Little; Jamie  Little → KANAB COAL AND ROCK PRODUCTS → KAIBAB 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:** Mike  Little et al → KAIBAB PIT; 2024-09-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** KANAB COAL AND ROCK PRODUCTS → KAIBAB PIT; 2026-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Little et al → KANAB COAL AND ROCK PRODUCTS; 2026-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jamie  Little et al → KANAB COAL AND ROCK PRODUCTS; 2026-02-12 to current/open; source msha-controller-operator-history