Entanglement Without Signalling - A Constraint-Based Interpretation Consistent with Quantum Experiments

Quantum entanglement is experimentally established yet conceptually unsettled. While standard quantum mechanics accurately predicts non-classical correlations and Bell-inequality violations, it remains largely silent on the ontological structure that makes such correlations possible. This paper presents a constraint-based interpretation of entanglement in which correlated outcomes arise from shared formation conditions rather than from particle-to-particle influence or superluminal signalling. The approach preserves all empirical predictions of quantum theory, respects relativistic causality, and reframes entanglement as a structural feature established at creation rather than an interaction occurring at measurement. The work establishes priority for an ontological mechanism underlying entanglement while remaining fully consistent with long-baseline, satellite-scale, and laboratory quantum experiments.