Text Redline Workbench & Diff Receipt

Scope fence – read before use Tracked changes in word processors are unauthenticated metadata – anyone with edit access can accept, reject, or silently rewrite a change history with no cryptographic trace. This tool fixes that for plain text and markdown documents only: the diff, the per-hunk dispositions, and the accepted-text digest are all independently replayable from the receipt. It does not read or produce .docx files – convert to plain text or markdown first. The diff is line-based; it will not catch a purely intra-line word substitution as a separate hunk from the line it lives on.