ASTRA synthetic gating demo (preprint + reproducibility package)

ASTRA synthetic gating demo (v5) is a fixed-seed, fully reproducible synthetic signal-processing demonstration of a preprocessing effect: an amplitude-threshold "gating" step can suppress a short, burst-like transient before downstream scoring. This release is method-focused. No detector strain data are analyzed, and no detection is claimed. Files included: paper.pdf (extended manuscript) ASTRA_Source_v5.zip (LaTeX source + minimal scripts) ASTRA_Ancillary_v5.zip (tables/logs/outputs referenced by the manuscript) SHA256SUMS.txt (integrity checks) README_ZENODO.md and CITATION.cff (overview + citation) Reproducibility: extract ASTRA_Source_v5.zip and build with:pdflatex paper.tex; bibtex paper; pdflatex paper.tex; pdflatex paper.tex. The manuscript (paper.pdf) is licensed under CC BY 4.0. The code in the GitHub repository is licensed under the MIT License (see the repository LICENSE file). Software releases are archived on Zenodo at https://doi.org/10.5281/zenodo.18287825 (this evidence bundle supplements software v5.0.2: https://doi.org/10.5281/zenodo.18287910).