Copyright Evidence Checker
Analyze your recording, compare it with a reference recording and research potential catalog matches. Review ownership and licensing before releasing sampled or covered music.
Track under review
Optional comparison
SHA-256 detects identical files. The additional audio-content comparison checks sampled spectral features after decoding, so it can flag similar recordings even when files have different encodings. A match is not a legal determination.
Catalog research
When a track is loaded, we search MusicBrainz using its embedded tags or the filename. Only song title, artist and ISRC are sent to the catalog. Your audio file stays on your device.
Check the songwriter and publishing records manually through BMI and ASCAP. These services do not authorize automatic scraping through this tool.
For additional research, consult the US Copyright Public Records. Catalog matches do not prove copying, infringement, or that a track is safe to release.
About Copyright Evidence Checker
Analyze your recording, compare it with a reference recording and research potential catalog matches. Review ownership and licensing before releasing sampled or covered music.
Review recording evidence before release
Analyze the recording, optionally compare it with a known reference, and use catalog research to investigate possible rights questions.
What to check
Audio similarity is not proof of copyright ownership or permission. This utility cannot certify that a recording is legally clear for distribution.
Related audio tools
Music Release Qc · Id3 Tagger · All audio applications · Help
Built and maintained by Eddie Boothby. Tool behavior and processing requirements depend on the selected application and browser.