Reproducibility Materials for "Mapping the Nadī Sūkta (ṚV 10.75): Uncertainty-Aware Cartography and Riverine Place-Making

This repository contains the reproducibility materials supporting the manuscript “Mapping the Nadī Sūkta (ṚV 10.75): Uncertainty-Aware Cartography and Riverine Place-Making” (Manuscript OAN-2025-0174). The archive contains the Python cartographic and computational-validation workflow; source GeoJSON geometries and coordinate tables; spatial and figure-provenance documentation; exact line-polygon intersection density outputs; benchmark-validation, sensitivity, weight-space, local-perturbation, leave-one-domain-out, and topology-validation outputs; historical evidence-audit materials; and anonymised human secondary-coding materials and concordance summaries. The materials are intended to permit regeneration and inspection of the reported maps, spatial outputs, evidence classifications, robustness analyses, and secondary-coding results. Approximate candidate geometries are explicitly identified as approximations and should not be interpreted as surveyed historical river centrelines. Copyrighted scholarly literature used in the evidence audit is cited but is not redistributed in the archive.