{
  "generated": "2026-11-09",
  "model_bytes": 1579,
  "model_sha256": "cae4bbed4f438ebec79ab765bf19b2066809509278991dd95c184954d8706b0a",
  "machine": "Windows-10-10.0.26200-SP0",
  "rows": [
    {
      "container": "PDF",
      "operation": "SHA-256 field",
      "ok": true,
      "detail": "full 64-hex digest in /TinyAISHA256"
    },
    {
      "container": "PDF",
      "operation": "byte copy",
      "ok": true,
      "detail": "1,579 B model / 3,832 B PDF"
    },
    {
      "container": "PDF",
      "operation": "pypdf rewrite",
      "ok": true,
      "detail": "1,579 B model; metadata + SHA-256 preserved"
    },
    {
      "container": "PDF",
      "operation": "rebuild without Info (print-to-PDF proxy)",
      "ok": false,
      "detail": "no /Keywords or /TinyAISHA256"
    },
    {
      "container": "PDF",
      "operation": "PDF/A or editor resave",
      "ok": null,
      "detail": "not measured; needs a PDF editor/renderer"
    },
    {
      "container": "XLSX",
      "operation": "byte copy",
      "ok": true,
      "detail": "160 words + 3 formulas"
    },
    {
      "container": "XLSX",
      "operation": "openpyxl load/save",
      "ok": true,
      "detail": "483 cells + 3 formulas identical"
    },
    {
      "container": "XLSX",
      "operation": "Google Sheets round-trip",
      "ok": null,
      "detail": "not measured; may rewrite formulas"
    },
    {
      "container": "PNG",
      "operation": "byte copy",
      "ok": true,
      "detail": "1,579 B model / 1,519 B PNG"
    },
    {
      "container": "PNG",
      "operation": "PNG re-save",
      "ok": true,
      "detail": "pixels exact"
    },
    {
      "container": "PNG",
      "operation": "metadata strip",
      "ok": true,
      "detail": "model is in pixels, not metadata"
    },
    {
      "container": "PNG",
      "operation": "JPEG q80",
      "ok": false,
      "detail": "AssertionError: not a PNG"
    },
    {
      "container": "PNG",
      "operation": "resize to 16x16",
      "ok": false,
      "detail": "AssertionError: IHDR 16x16 depth=8 color=2"
    },
    {
      "container": "WAV",
      "operation": "byte copy",
      "ok": true,
      "detail": "1,583 B data / 1,627 B WAV"
    },
    {
      "container": "WAV",
      "operation": "PCM rewrite",
      "ok": true,
      "detail": "samples exact"
    },
    {
      "container": "WAV",
      "operation": "FLAC (lossless)",
      "ok": true,
      "detail": "samples exact"
    },
    {
      "container": "WAV",
      "operation": "MP3 128k",
      "ok": false,
      "detail": "data 1583 B, length 335547702"
    },
    {
      "container": "WAV",
      "operation": "Opus 32k",
      "ok": false,
      "detail": "data 9498 B, length 34347564"
    },
    {
      "container": "QR",
      "operation": "as-is",
      "ok": true,
      "detail": "2158 B URL, exact"
    },
    {
      "container": "QR",
      "operation": "downscale to 10% (161 px)",
      "ok": true,
      "detail": "exact URL"
    },
    {
      "container": "QR",
      "operation": "JPEG q5",
      "ok": true,
      "detail": "exact URL"
    },
    {
      "container": "QR",
      "operation": "blur 4 px",
      "ok": true,
      "detail": "exact URL"
    },
    {
      "container": "QR",
      "operation": "rotate 20 degrees",
      "ok": true,
      "detail": "exact URL"
    },
    {
      "container": "QR",
      "operation": "drop #fragment (link shortener)",
      "ok": false,
      "detail": "no #m=; qr.html has no model"
    },
    {
      "container": "QR",
      "operation": "phone camera / print",
      "ok": null,
      "detail": "not measured; decoder test only"
    },
    {
      "container": "HTML",
      "operation": "byte copy",
      "ok": true,
      "detail": "80 examples, 2 labels; trainCNB present"
    },
    {
      "container": "HTML",
      "operation": "strip <script> (simulated CMS)",
      "ok": false,
      "detail": "no classifier or data"
    },
    {
      "container": "SVG",
      "operation": "byte copy",
      "ok": true,
      "detail": "1,579 B model / 4.9 KB SVG"
    },
    {
      "container": "SVG",
      "operation": "strip <metadata> (sanitizer)",
      "ok": false,
      "detail": "no tinyai metadata"
    },
    {
      "container": "SVG",
      "operation": "rasterize to PNG",
      "ok": null,
      "detail": "not measured; needs a rasterizer"
    },
    {
      "container": "MIDI",
      "operation": "byte copy",
      "ok": true,
      "detail": "1,579 B model / 4,493 B MIDI"
    },
    {
      "container": "MIDI",
      "operation": "render to audio",
      "ok": null,
      "detail": "not measured; a render drops note bytes"
    },
    {
      "container": "Prompt",
      "operation": "copy",
      "ok": null,
      "detail": "not self-contained; needs a shared base"
    }
  ]
}