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Three CC0 raw.pixls.us files of one ILCE-7CR (61 MP) scene: lossless compressed L and M (subsampled YCbCr) and compressed ARW2. A raw corpus test pins model, colour-filter layout, black level, white level, as-shot gains and default crop, and checks that the lossless and compressed mosaics agree inside the crop (green block correlation 0.9976). An engine corpus test checks each gets a fitted camera look, not the neutral fallback. All nine public codings decode and fit (mean dE76 1.59 against their camera JPEGs). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>