{"success":true,"data":{"ext":"jnt","name":"MS Windows journal file","description":"Microsoft Windows Journal file (JNT) is a note-taking document format created by Microsoft and used by Windows Journal. It is primarily used for handwritten notes, sketches, annotations, and ink-based classroom or meeting records on compatible Windows systems. The format is associated with legacy tablet-era software and is now largely obsolete; like other document files, it should be opened cautiously if obtained from untrusted sources.","mime":[],"risk_level":"Safe","signatures":[{"hex":"4E 42 2A 00","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":["jtp"],"usage":{"python":"def is_jnt(file_path: str) -> bool:\n    \"\"\"Check if file is a valid JNT by magic bytes.\"\"\"\n    signature = bytes([0x4E, 0x42, 0x2A, 0x00])\n    with open(file_path, \"rb\") as f:\n        return f.read(4) == signature","node":"function isJNT(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x4E, 0x42, 0x2A, 0x00]);\n  return buffer.subarray(0, 4).equals(signature);\n}","go":"func IsJNT(data []byte) bool {\n    signature := []byte{0x4E, 0x42, 0x2A, 0x00}\n    if len(data) < 4 {\n        return false\n    }\n    return bytes.Equal(data[:4], signature)\n}"}}}