Reproducibility materials and research data for Canonical Ring-Coupled Syndrome Coding for Cost-Adaptive Spatial Steganography

Processed research data and reproducibility evidence supporting the manuscript Canonical Ring-Coupled Syndrome Coding for Cost-Adaptive Spatial Steganography. Version 1.1.0 extends the original frozen dataset (v1.0.0) with independently auditable results prepared during peer-review revision. The compact archive contains: Original 200-image held-out degree-matched distortion comparisons and paired confidence intervals. Learned-cost sensitivity results, repeated runtime measurements, and matched syndrome-coding comparisons including STC and an open-source polar-code implementation. Frozen KeNet steganalysis protocols, seed-level metrics, held-out predictions, and paired analyses for degree-matched and pixel-pairing controls. Matrix-structure, coupling-parameter, and global-versus-nearby pairing diagnostics. A SHA-256 file manifest for integrity verification. The original v1.0.0 dataset remains accessible through the record's version history. Distinct experiments use their stated frozen image cohorts and evaluation protocols; their measurements are not pooled across datasets. Raw BOSSBase and BOWS2 images, large model checkpoints, and third-party software are not redistributed.