{
  "captions": true,
  "voice": "af_nova",
  "music_url": "https://4ort.live/v1/mtv/video/823cb958a78f?download=1",
  "scenes": [
    {
      "id": "s1",
      "narration": "Before the arc strikes, the gap must breathe. One point five millimeters between tungsten and steel — no more, no less. The argon shield settles around the tip like a held breath. This is the moment before ignition."
    },
    {
      "id": "s2",
      "narration": "High frequency ignites the plasma. Voltage collapses from twenty volts to twelve. Current surges to one-twenty amps in three hundredths of a second. The ionized column forms — a bridge of pure energy."
    },
    {
      "id": "s3",
      "narration": "Six thousand degrees Celsius burns in the core. The arc stabilizes. Penetration reaches three point two millimeters into the base metal. The weld pool opens like a mirror reflecting the sun."
    },
    {
      "id": "s4",
      "narration": "Hold the gap. One tenth of a millimeter tolerance. Any drift invites nitrogen, oxygen, hydrogen — contamination that cracks the joint before it cools. This is the discipline of the strike zone."
    }
  ]
}