[
  {
    "seg_idx": 1,
    "type": "title_card",
    "title": "TERRA INCOGNITA",
    "phase": "OPENING SLATE",
    "action": "Material territories \u2014 scratches, light leaks, and the carrier as evidence",
    "start_sec": 0.0,
    "end_sec": 3.0,
    "dur_s": 3.0
  },
  {
    "type": "shot",
    "clip_id": "e0a5fa07-ca06-551d-b316-1626f3fccf92",
    "source_title": "Dolores Project archaeology",
    "source_year": 1979,
    "source_page": "https://www.movingimagearchive.com/sources/dolores-project-archaeology-ebeec4b0?clip=e0a5fa07-ca06-551d-b316-1626f3fccf92",
    "in_s": 0.49,
    "out_s": 5.69,
    "dur_s": 5.2,
    "phase": "SURFACE 01 \u00b7 RECOGNIZABLE IMAGE & VERTICAL SCRATCH",
    "action": "Dolores Project Archaeology (1979): Recognizable face and landscape scored by vertical emulsion lines",
    "nearmatch": "OBSERVED DEFECT: EMULSION SCRATCH",
    "seg_idx": 2,
    "start_sec": 3.0,
    "end_sec": 8.2
  },
  {
    "type": "carrier_bridge_shot",
    "clip_a": {
      "id": "e0a5fa07-ca06-551d-b316-1626f3fccf92",
      "title": "Dolores Project archaeology",
      "year": 1979
    },
    "clip_b": {
      "id": "b45f3dbf-0ee8-50cb-846e-c284e5f27f76",
      "title": "Watershed wildfire",
      "year": 1958
    },
    "dur_s": 4.5,
    "phase": "B-ROLL 03 \u00b7 AUTHORED OPTICAL CARRIER BRIDGE",
    "action": "Authored optical splice/sprocket wipe following the vertical scratch boundary into the next reel",
    "nearmatch": "SCION 071 + 113 \u00b7 INSPECTABLE LAYER",
    "seg_idx": 3,
    "start_sec": 8.2,
    "end_sec": 12.7
  },
  {
    "type": "shot",
    "clip_id": "b45f3dbf-0ee8-50cb-846e-c284e5f27f76",
    "source_title": "Watershed wildfire",
    "source_year": 1958,
    "source_page": "https://www.movingimagearchive.com/sources/watershed-wildfire-03feb5e2?clip=b45f3dbf-0ee8-50cb-846e-c284e5f27f76",
    "in_s": 0.13,
    "out_s": 6.01,
    "dur_s": 6.0,
    "phase": "SURFACE 02 \u00b7 LIGHT LEAK & THERMAL DECAY",
    "action": "Watershed Wildfire (1958): Flare and emulsion mottling where smoke and celluloid grain merge",
    "nearmatch": "OBSERVED DEFECT: FLARE & GRAIN",
    "seg_idx": 4,
    "start_sec": 12.7,
    "end_sec": 18.7
  },
  {
    "type": "shot",
    "clip_id": "497f7a8c-b3f6-50c3-bae0-ee81a2cf6824",
    "source_title": "Mirror of America",
    "source_year": 1963,
    "source_page": "https://www.movingimagearchive.com/sources/mirror-of-america-5376a739?clip=497f7a8c-b3f6-50c3-bae0-ee81a2cf6824",
    "in_s": 0.33,
    "out_s": 6.13,
    "dur_s": 5.8,
    "phase": "SURFACE 03 \u00b7 THE CARRIER REVEALED (BLEACHED EMULSION)",
    "action": "A Day in History (1945): Overexposed, bleached nitrate/acetate emulsion where figures dissolve into the strip",
    "nearmatch": "MATERIAL CARRIER AS SUBJECT",
    "seg_idx": 5,
    "start_sec": 18.7,
    "end_sec": 24.5
  },
  {
    "type": "shot",
    "clip_id": "4d02a782-303d-5ee2-acc8-0a85719315cc",
    "source_title": "Mirror of America",
    "source_year": 1963,
    "source_page": "https://www.movingimagearchive.com/sources/mirror-of-america-5376a739?clip=4d02a782-303d-5ee2-acc8-0a85719315cc",
    "in_s": 0.33,
    "out_s": 6.33,
    "dur_s": 6.0,
    "phase": "SCENE RETURN \u00b7 WORLD SURFACING THROUGH DAMAGED CELLULOID",
    "action": "All the King's Horses (1935): Recognizable urban street and vehicles surfacing through heavy archival grain and wear",
    "nearmatch": "RECORDED WORLD SURFACES",
    "seg_idx": 6,
    "start_sec": 24.5,
    "end_sec": 30.5
  },
  {
    "type": "shot",
    "clip_id": "8b5d40ae-e78d-59a3-984f-ed065c21cc7f",
    "source_title": "Laboratory Design for Microbiological Safety",
    "source_year": 1966,
    "source_page": "https://www.movingimagearchive.com/sources/laboratory-design-for-microbiological-safety?clip=8b5d40ae-e78d-59a3-984f-ed065c21cc7f",
    "in_s": 0.5,
    "out_s": 6.0,
    "dur_s": 5.5,
    "phase": "CLOSING INTERVAL \u00b7 LEADER & OPTICAL TRACK NOISE",
    "action": "Laboratory Design for Microbiological Safety (1966): Blank leader interval held with 16mm optical carrier noise",
    "nearmatch": "BLANK INTERVAL + CARRIER SOUND",
    "seg_idx": 7,
    "start_sec": 30.5,
    "end_sec": 36.0
  },
  {
    "seg_idx": 8,
    "type": "closing_ledger",
    "title": "SOURCE ATTRIBUTION & BOUNDARY NOTE",
    "phase": "CLOSING LEDGER",
    "action": "The authored optical carrier bridge is explicitly marked as a separate layer and does not claim a historical relationship between unrelated fragments.",
    "start_sec": 36.0,
    "end_sec": 39.5,
    "dur_s": 3.5
  }
]