{"success":true,"data":{"ext":"koz","name":"Sprint Music Store audio file","description":"The KOZ format is an audio file format used by Sprint Music Store, a digital music service operated by Sprint Nextel, for distributing protected music content to mobile devices. It was primarily used for downloading, storing, and playing subscription or purchased tracks within compatible Sprint handset software and related media applications. The format is now largely obsolete, and files may require legacy software to open; as with any unknown media file, they should be obtained from trusted sources.","mime":[],"risk_level":"Safe","signatures":[{"hex":"49 44 33 03 00 00 00","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":[],"usage":{"python":"def is_koz(file_path: str) -> bool:\n    \"\"\"Check if file is a valid KOZ by magic bytes.\"\"\"\n    signature = bytes([0x49, 0x44, 0x33, 0x03, 0x00, 0x00, 0x00])\n    with open(file_path, \"rb\") as f:\n        return f.read(7) == signature","node":"function isKOZ(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x49, 0x44, 0x33, 0x03, 0x00, 0x00, 0x00]);\n  return buffer.subarray(0, 7).equals(signature);\n}","go":"func IsKOZ(data []byte) bool {\n    signature := []byte{0x49, 0x44, 0x33, 0x03, 0x00, 0x00, 0x00}\n    if len(data) < 7 {\n        return false\n    }\n    return bytes.Equal(data[:7], signature)\n}"},"category":"Audio"}}