{
  "date": "2026-10-26",
  "scope": "New synthetic collection exercise, separate from the earlier same-computer exercise.",
  "sourceStorage": "Internal NVMe disk",
  "destinationStorage": "USB hard disk, different physical disk number confirmed by Windows storage inventory",
  "differentPhysicalDisks": true,
  "mediaFiles": 10,
  "indexFiles": 1,
  "allBytesMatch": true,
  "files": [
    {
      "path": "01_originals/01-synthetic-city-card.png",
      "bytes": 10256,
      "sourceSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "destinationSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "01_originals/02-synthetic-city-card.png",
      "bytes": 11547,
      "sourceSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "destinationSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "01_originals/03-synthetic-city-card.png",
      "bytes": 12389,
      "sourceSha256": "7781ac642a0c4a64f19ea41356e2d87ada9424748d13a8b927592ce6e7d9b9ca",
      "destinationSha256": "7781ac642a0c4a64f19ea41356e2d87ada9424748d13a8b927592ce6e7d9b9ca",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "01_originals/04-silent-test-clip.mp4",
      "bytes": 15576,
      "sourceSha256": "2b8e4bee790408bcb8019289cdaab5eea51636bc85f88692e8a13599bbfa19dc",
      "destinationSha256": "2b8e4bee790408bcb8019289cdaab5eea51636bc85f88692e8a13599bbfa19dc",
      "verifiedFromDestination": "All 144 frames decoded from USB copy; 6 seconds, silent"
    },
    {
      "path": "02_working/b01-review-copy.png",
      "bytes": 10256,
      "sourceSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "destinationSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "02_working/b02-review-copy.png",
      "bytes": 11547,
      "sourceSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "destinationSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "02_working/b03-review-copy.png",
      "bytes": 12389,
      "sourceSha256": "7781ac642a0c4a64f19ea41356e2d87ada9424748d13a8b927592ce6e7d9b9ca",
      "destinationSha256": "7781ac642a0c4a64f19ea41356e2d87ada9424748d13a8b927592ce6e7d9b9ca",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "02_working/b04-review-copy.mp4",
      "bytes": 15576,
      "sourceSha256": "2b8e4bee790408bcb8019289cdaab5eea51636bc85f88692e8a13599bbfa19dc",
      "destinationSha256": "2b8e4bee790408bcb8019289cdaab5eea51636bc85f88692e8a13599bbfa19dc",
      "verifiedFromDestination": "All 144 frames decoded from USB copy; 6 seconds, silent"
    },
    {
      "path": "03_selection/b01-review-copy.png",
      "bytes": 10256,
      "sourceSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "destinationSha256": "a4b59765b0a4824eea7de5645de2cc73821b84ff35dc4f921ebdbed94a79b3a1",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "03_selection/b02-review-copy.png",
      "bytes": 11547,
      "sourceSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "destinationSha256": "685c073ea6ac55c454b04bf8aea2d37b19b4f1bc081a2d6db04cc2b3e0a67c03",
      "verifiedFromDestination": "PNG reopened and decoded, 640 x 360"
    },
    {
      "path": "index.json",
      "bytes": 1064,
      "sourceSha256": "70ef8e08db35d91419ac4bbfa85528ba7bac0044175c5d948b1d5e8d23b3f268",
      "destinationSha256": "70ef8e08db35d91419ac4bbfa85528ba7bac0044175c5d948b1d5e8d23b3f268",
      "verifiedFromDestination": "JSON parsed"
    }
  ],
  "limitations": [
    "Not a hosted original-file download or guest submission test.",
    "Not a real family or travel collection and no participant permissions inferred.",
    "The destination remained connected; no disconnect/reconnect, offsite, long-term retention or disaster-recovery claim.",
    "Decoder validation is not a claim that an audience watched the video."
  ]
}