Your build is kept for 14 days, then destroyed
Your build and the run's recordings are kept for 14 days after your report is delivered — for free re-runs and support, nothing else — and are then destroyed automatically. You can have them destroyed sooner at any time, and every destruction produces a signed record you can check. The purpose is the narrow one stated there and nothing else: we do not read your build for anything you did not buy. If a run fails, the build is held for a 72-hour retry window so you can attach a fixed one to the same audit, then destroyed the same way. Your report no longer carries a deletion timestamp, because a document handed to you on day one cannot honestly stamp something that happens on day fourteen — the proof arrives when the deletion does, in the next card.