{
  "title": "Fossil Frequency",
  "theme": "jurassic",
  "publicURL": "https://fossil-frequency.jurassicpark.io",
  "briefing": "A visitor-center audio archive was recovered from the emergency operations desk. Pull the evidence bundle and inspect the recordings.",
  "bundle": "fossil-frequency-evidence.zip",
  "artifacts": [
    {
      "name": "control-room-call.mp3",
      "contentType": "audio/mpeg",
      "role": "metadata",
      "clue": "Inspect the custom ID3 text frame; gc23's Secret Sounds used the same hiding place.",
      "metadataDescriptor": {
        "frame": "TXXX",
        "value": "amber-control-handshake"
      }
    },
    {
      "name": "raptor-pen-beacon.wav",
      "contentType": "audio/wav",
      "role": "signal",
      "clue": "Decode the two-tone FSK samples as 8-bit ASCII, most-significant bit first.",
      "signal": {
        "encoding": "fsk-ascii-msb",
        "sampleRate": 44100,
        "bitRate": 30,
        "spaceHz": 880,
        "markHz": 1760,
        "leaderSeconds": 0.5,
        "trailerSeconds": 0.5,
        "messageBytes": 64
      }
    },
    {
      "name": "tour-loop.mp3",
      "contentType": "audio/mpeg",
      "role": "decoy",
      "clue": "Standard tour audio with ordinary catalog metadata."
    },
    {
      "name": "maintenance-tone.wav",
      "contentType": "audio/wav",
      "role": "decoy",
      "clue": "A calibration tone captured during generator testing."
    },
    {
      "name": "operator-notes.txt",
      "contentType": "text/plain; charset=utf-8",
      "role": "decoy",
      "clue": "Archive index says the useful files are the quiet MP3 and the two-tone pen beacon."
    }
  ]
}