Gravitational Lensing and Dynamical Mass as a Discriminator of Entropy-Structured Spacetime

This paper represents an earlier stage in the development of the Entropic Spacetime Field (ESF) framework. The current reference implementation is presented in MMS-A19: The Entropic Spacetime Field: A Canonical Wave Framework for Cosmic Structure Formation 10.5281/zenodo.21433778, which supersedes the mathematical formulation described here while retaining a number of the underlying physical concepts. This research note examines gravitational lensing and dynamical mass inference as complementary probes of spacetime curvature and explores how persistent discrepancies between them can be framed as a falsifiable discriminator for entropy-structured spacetime frameworks. The discussion is explicitly test-first and does not propose model fitting or explanation of existing anomalies. Instead, it clarifies how current and near-term observations could constrain or exclude frameworks in which curvature reflects accumulated entropy and transport history rather than localised particle mass alone. The note is intended as a complementary constraint study linked to the Entropic Spacetime Field (ESF) framework.