{
  "date": "2026-09-24T09:06 PDT",
  "question": "Does Suno's public detector read anything besides the C2PA layer?",
  "method": "Decode the purchased MP3 and hand the public detector the strongest possible case for any in-audio check: lossless re-saves of the exact same decoded audio (WAV PCM, FLAC) plus a 320 kbps MP3 re-encode, all container metadata stripped.",
  "api": "https://studio-api.prod.suno.com/api/c2pa/detect",
  "results": [
    {"file": "original_decoded.wav", "note": "lossless PCM of the same decoded audio", "suno_api_response": "resp_original_decoded.wav.json"},
    {"file": "original.flac", "note": "lossless, same decoded audio", "suno_api_response": "resp_original.flac.json"},
    {"file": "reencode320.mp3", "note": "MP3 320k re-encode", "suno_api_response": "resp_reencode320.mp3.json"}
  ],
  "verdict": "all three no_suno_provenance - the public path reads the credential layer only, even from lossless audio",
  "sunos_own_statement": "Suno blog, 6 Aug 2026: In the coming weeks, we will also be adopting new audio watermarking and fingerprinting technology so we can partner more closely with distribution platforms on combatting fraud and misuse. No public interface to that layer exists as of 24 Sep 2026."
}