BilibiliSponsorBlock is a content filtering system and API server designed to identify and remove sponsored segments and filler content from Bilibili video playback. It utilizes a crowdsourced segment database where users contribute and vote on timestamps to create a shared repository of skippable video sections.
The project features a video metadata synchronizer that links equivalent videos across different platforms, allowing skip markers and timing data to be shared between mirrored content. It implements a reputation-based permission system to manage submissions and edits, alongside a privacy-preserving hash system for retrieving segment data without leaking user viewing history.
The system covers broad capability areas including community contribution tracking via leaderboards and global statistics, segment validation through user voting, and administrative controls such as category locking. It also provides tools for monitoring server status and analyzing detailed user activity statistics.