In recent "Plus" or "Lite" versions (like YTLite 5.2.1), the SponsorBlock core was rewritten for better compatibility with YouTube's newer player versions (v19.x.x+) and improved segment skipping.
Technical users can view the Public API Docs to understand how the crowdsourced database is queried. SponsorBlock for YouTube 5.2.1
Users submit timestamps for segments (sponsors, intros, etc.). In recent "Plus" or "Lite" versions (like YTLite 5
The primary "paper" associated with is actually its open-source documentation and publicly available source code , as it is a community-driven project rather than an academic study. SponsorBlock for YouTube 5.2.1
A community-based ranking system ensures only accurate segments are automatically skipped.
The extension uses a "k-anonymity" style approach to check for skipped segments without sending your full watch history to the server.