What YouTube Content ID actually does
Content ID is YouTube’s audio and video fingerprinting system. When SMSound India registers your master as a Content ID reference, YouTube continuously scans every video on the platform — including new uploads, Shorts, and live streams — and matches their audio against your fingerprint.
When a match is found, YouTube either (a) runs ads on the user video with revenue flowing to you, (b) tracks views without monetizing, or (c) blocks the video — depending on the policy you set per-territory. Most independent artists choose "monetize" globally, which converts every fan upload into a small but cumulative revenue stream.