# Research source

Implementation and reproducible analysis: https://github.com/wang-mengdi/variational-films/tree/68c6f03/thin_film/scripts/mechanical_work

Native implementation guards were pushed in 7a353db. Completed results and four updated handoff documents are in 68c6f03. The frozen protocol records exact source and executable hashes at execution; later analysis/report scripts do not change native physics. Original failed CSV-format output is preserved under format_check in the raw manifest.