Controlled TIFF inspection examples — CC0-1.0

These three images are drawn by code, not generated by an AI model or captured by a camera.
All contain exactly the same 32 × 24 opaque RGB pixels: left half black, right half white.
The little-endian and big-endian files have no added AI declaration.
The declaration file has an intentionally editable IPTC DigitalSourceType XMP tag set to trainedAlgorithmicMedia.
That tag demonstrates an assertion inside a file; it is not a verified history or proof of the pixels' origin.
None contains a signed C2PA manifest or saved generation prompt.
Expected diagnostics: brightness mean 127.5; near-black 50%; near-white 50%; transparency 0%.
SHA-256 differs across these files even though their decoded pixels match.
Download reproduce.mjs from this directory, then run: node reproduce.mjs ./tiff-examples
No dependencies or network calls. Refuses to overwrite existing output files.

To the extent possible under law, isGenAI has waived all copyright and related rights in these controlled fixture pixels and metadata under CC0 1.0 Universal.
License: https://creativecommons.org/publicdomain/zero/1.0/

[
  {
    "name": "controlled-little-endian.tif",
    "bytes": 2444,
    "sha256": "b5571c4d65dfb5b2541733f46e15a17ec188465834a185ee526e8ce51e8773c3"
  },
  {
    "name": "controlled-big-endian.tif",
    "bytes": 2444,
    "sha256": "79c66336005f0cc96f1235ac5bee3cfd2f4c2e057915d7893ab451f6f0931b34"
  },
  {
    "name": "controlled-ai-declaration.tif",
    "bytes": 2764,
    "sha256": "f9c488551d04f1b253385278f4b3530599be8f43e92bb0ffba36dfe2db3c10fd"
  }
]