Tired of downloading 3GB+ AI models in the browser only to lose progress when your connection drops? VerifyFetch adds chunk-level hash verification and resumable downloads to the browser. Bad data? Caught immediately. Connection lost at 80%? Resumes from 80%. Progress persists across page reloads via IndexedDB. Also supports multi-CDN failover and a transparent service worker mode. Built for WebLLM, Transformers.js, and anything shipping large files to the browser.