YouTube’s digital fingerprinting system for copyrighted uploads is called Content ID. Developed by Google, it compares uploaded videos with reference audio and video files supplied by participating copyright owners.
When Content ID detects a match, the rights holder can choose what happens next. Depending on the owner’s policy, the matched video may be blocked, monitored for viewing statistics, or monetized with advertising. This lets copyright owners manage large volumes of uploads without manually checking every video.
Content ID is not the same as a copyright strike or a simple user report. It is an automated matching system, and an automated claim can be disputed by the uploader. Access is limited to copyright owners who meet YouTube’s eligibility requirements and can demonstrate that they control substantial original material.