# Relationship history for MSHA mine 3402236

Current hierarchy: **Jonas  Branscum → JB Stone, LLC → JB Stone Mine #1**

- 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:** JB Stone, LLC → JB Stone Mine #1; 2023-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jonas  Branscum → JB Stone Mine #1; 2023-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonas  Branscum → JB Stone, LLC; 2023-11-13 to current/open; source msha-controller-operator-history