# Relationship history for MSHA mine 5400413

Current hierarchy: **Jorge A  Ascencio (Weber); Vidal  Perez (Cotto) → Docori Sand & Gravel → DOCORI SAND & GRAVEL**

- 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

- **operator_operates_mine:** Dacori Sand & Gravel → DOCORI SAND & GRAVEL; 1998-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jorge A  Ascencio (Weber) → DOCORI SAND & GRAVEL; 1998-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorge A  Ascencio (Weber) → Dacori Sand & Gravel; 1998-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vidal  Perez (Cotto) → Dacori Sand & Gravel; 1998-10-01 to current/open; source msha-controller-operator-history