Understand the failure.
Verify the repair.
Small, reproducible software failures. The broken implementation, the fix that didn’t work, and the one that passed—preserved together.
Explore the cases ↓How results are verified ↗WHAT THE ARCHIVE CONTAINS
100840 executable cases. 20168 are open.
Every case records the implementation that fails, the fix that did not work, and the repair that passed its checks—with recorded outputs and source hashes. This release adds 100840 cases across 20168 failure mechanisms and 254 domains.
The open tier gives you the failure and the unsuccessful fix for one case in every mechanism. The remaining 80672 cases, 5 variants per mechanism, are member-only: the verified repair, its recorded checks, and the full fixture suite are held in the member archive. Read the methodology ↗
A RECORD OF WHAT WENT WRONG
Browse the archive / 100840
Chase-lock offset with subframes: subframe sign · case 01
Negative offsets carry a positive subframe part.
Chase-lock offset with subframes: subframe sign · case 02
Negative offsets carry a positive subframe part.
Chase-lock offset with subframes: subframe sign · case 03
Negative offsets carry a positive subframe part.
Chase-lock offset with subframes: subframe sign · case 04
Negative offsets carry a positive subframe part.
Chase-lock offset with subframes: subframe sign · case 05
Negative offsets carry a positive subframe part.
Chase-lock offset with subframes: subframe digits · case 01
A label ending in .5 contributes 5 hundredths instead of 50.
Chase-lock offset with subframes: subframe digits · case 02
A label ending in .5 contributes 5 hundredths instead of 50.
Chase-lock offset with subframes: subframe digits · case 03
A label ending in .5 contributes 5 hundredths instead of 50.
Chase-lock offset with subframes: subframe digits · case 04
A label ending in .5 contributes 5 hundredths instead of 50.
Chase-lock offset with subframes: subframe digits · case 05
A label ending in .5 contributes 5 hundredths instead of 50.
Chase-lock offset with subframes: day length in subframes · case 01
Offsets across midnight are wrapped at a fraction of the day.
Chase-lock offset with subframes: day length in subframes · case 02
Offsets across midnight are wrapped at a fraction of the day.
Chase-lock offset with subframes: day length in subframes · case 03
Offsets across midnight are wrapped at a fraction of the day.
Chase-lock offset with subframes: day length in subframes · case 04
Offsets across midnight are wrapped at a fraction of the day.
Chase-lock offset with subframes: day length in subframes · case 05
Offsets across midnight are wrapped at a fraction of the day.
90 kHz presentation timestamp to frame label: wrap modulus · case 01
Streams that pass the PTS rollover jump backwards by more than 13 hours.
90 kHz presentation timestamp to frame label: wrap modulus · case 02
Streams that pass the PTS rollover jump backwards by more than 13 hours.
90 kHz presentation timestamp to frame label: wrap modulus · case 03
Streams that pass the PTS rollover jump backwards by more than 13 hours.
90 kHz presentation timestamp to frame label: wrap modulus · case 04
Streams that pass the PTS rollover jump backwards by more than 13 hours.
90 kHz presentation timestamp to frame label: wrap modulus · case 05
Streams that pass the PTS rollover jump backwards by more than 13 hours.
90 kHz presentation timestamp to frame label: pre-roll window · case 01
Timestamps that legitimately wrapped past 2^33 are discarded.
90 kHz presentation timestamp to frame label: pre-roll window · case 02
Timestamps that legitimately wrapped past 2^33 are discarded.
90 kHz presentation timestamp to frame label: pre-roll window · case 03
Timestamps that legitimately wrapped past 2^33 are discarded.
90 kHz presentation timestamp to frame label: pre-roll window · case 04
Timestamps that legitimately wrapped past 2^33 are discarded.
90 kHz presentation timestamp to frame label: pre-roll window · case 05
Timestamps that legitimately wrapped past 2^33 are discarded.
90 kHz presentation timestamp to frame label: elapsed wrap · case 01
Frames after a PTS rollover get negative frame numbers.
90 kHz presentation timestamp to frame label: elapsed wrap · case 02
Frames after a PTS rollover get negative frame numbers.
90 kHz presentation timestamp to frame label: elapsed wrap · case 03
Frames after a PTS rollover get negative frame numbers.
90 kHz presentation timestamp to frame label: elapsed wrap · case 04
Frames after a PTS rollover get negative frame numbers.
90 kHz presentation timestamp to frame label: elapsed wrap · case 05
Frames after a PTS rollover get negative frame numbers.
90 kHz presentation timestamp to frame label: nearest frame · case 01
Timestamps a few ticks before a frame boundary map to the previous frame.
90 kHz presentation timestamp to frame label: nearest frame · case 02
Timestamps a few ticks before a frame boundary map to the previous frame.
90 kHz presentation timestamp to frame label: nearest frame · case 03
Timestamps a few ticks before a frame boundary map to the previous frame.
90 kHz presentation timestamp to frame label: nearest frame · case 04
Timestamps a few ticks before a frame boundary map to the previous frame.
90 kHz presentation timestamp to frame label: nearest frame · case 05
Timestamps a few ticks before a frame boundary map to the previous frame.
90 kHz presentation timestamp to frame label: nominal label rate · case 01
NTSC labels count only 29 frames per second.
90 kHz presentation timestamp to frame label: nominal label rate · case 02
NTSC labels count only 29 frames per second.
90 kHz presentation timestamp to frame label: nominal label rate · case 03
NTSC labels count only 29 frames per second.
90 kHz presentation timestamp to frame label: nominal label rate · case 04
NTSC labels count only 29 frames per second.
90 kHz presentation timestamp to frame label: nominal label rate · case 05
NTSC labels count only 29 frames per second.
Pixel bake turns tag-6 photos counter-clockwise · case 01
Portrait phone photos tagged 6 are baked upside down relative to what every viewer shows.
Pixel bake turns tag-6 photos counter-clockwise · case 02
Portrait phone photos tagged 6 are baked upside down relative to what every viewer shows.
Pixel bake turns tag-6 photos counter-clockwise · case 03
Portrait phone photos tagged 6 are baked upside down relative to what every viewer shows.
Pixel bake turns tag-6 photos counter-clockwise · case 04
Portrait phone photos tagged 6 are baked upside down relative to what every viewer shows.
Pixel bake turns tag-6 photos counter-clockwise · case 05
Portrait phone photos tagged 6 are baked upside down relative to what every viewer shows.
Pixel bake treats tag 8 as a plain transpose · case 01
Images tagged 8 come out mirrored after baking even though their dimensions look right.
Pixel bake treats tag 8 as a plain transpose · case 02
Images tagged 8 come out mirrored after baking even though their dimensions look right.
Pixel bake treats tag 8 as a plain transpose · case 03
Images tagged 8 come out mirrored after baking even though their dimensions look right.
Pixel bake treats tag 8 as a plain transpose · case 04
Images tagged 8 come out mirrored after baking even though their dimensions look right.
Pixel bake treats tag 8 as a plain transpose · case 05
Images tagged 8 come out mirrored after baking even though their dimensions look right.
Pixel bake swaps the transpose and transverse tags · case 01
Selfies saved with tag 5 are baked rotated 180 degrees from the intended upright view.
Pixel bake swaps the transpose and transverse tags · case 02
Selfies saved with tag 5 are baked rotated 180 degrees from the intended upright view.
Pixel bake swaps the transpose and transverse tags · case 03
Selfies saved with tag 5 are baked rotated 180 degrees from the intended upright view.
Pixel bake swaps the transpose and transverse tags · case 04
Selfies saved with tag 5 are baked rotated 180 degrees from the intended upright view.
Pixel bake swaps the transpose and transverse tags · case 05
Selfies saved with tag 5 are baked rotated 180 degrees from the intended upright view.
Pixel bake applies a half turn for transverse tags · case 01
Tag-7 images keep swapped dimensions but their content is a 180 degree turn instead of an anti-diagonal flip.
Pixel bake applies a half turn for transverse tags · case 02
Tag-7 images keep swapped dimensions but their content is a 180 degree turn instead of an anti-diagonal flip.
Pixel bake applies a half turn for transverse tags · case 03
Tag-7 images keep swapped dimensions but their content is a 180 degree turn instead of an anti-diagonal flip.
Pixel bake applies a half turn for transverse tags · case 04
Tag-7 images keep swapped dimensions but their content is a 180 degree turn instead of an anti-diagonal flip.
Pixel bake applies a half turn for transverse tags · case 05
Tag-7 images keep swapped dimensions but their content is a 180 degree turn instead of an anti-diagonal flip.
Pixel bake mirrors tag 2 across the wrong axis · case 01
Horizontally mirrored scans come out vertically flipped.
Pixel bake mirrors tag 2 across the wrong axis · case 02
Horizontally mirrored scans come out vertically flipped.
Pixel bake mirrors tag 2 across the wrong axis · case 03
Horizontally mirrored scans come out vertically flipped.
Pixel bake mirrors tag 2 across the wrong axis · case 04
Horizontally mirrored scans come out vertically flipped.
Pixel bake mirrors tag 2 across the wrong axis · case 05
Horizontally mirrored scans come out vertically flipped.
Pixel bake keeps stored dimensions for transpose tags · case 01
Tag 5 and 7 images are cropped or indexed out of shape because output width and height are not exchanged.
Pixel bake keeps stored dimensions for transpose tags · case 02
Tag 5 and 7 images are cropped or indexed out of shape because output width and height are not exchanged.
Pixel bake keeps stored dimensions for transpose tags · case 03
Tag 5 and 7 images are cropped or indexed out of shape because output width and height are not exchanged.
Pixel bake keeps stored dimensions for transpose tags · case 04
Tag 5 and 7 images are cropped or indexed out of shape because output width and height are not exchanged.
Pixel bake keeps stored dimensions for transpose tags · case 05
Tag 5 and 7 images are cropped or indexed out of shape because output width and height are not exchanged.
Pixel bake discards valid tag 8 as invalid · case 01
Photos rotated 90 degrees counter-clockwise are baked unrotated.
Pixel bake discards valid tag 8 as invalid · case 02
Photos rotated 90 degrees counter-clockwise are baked unrotated.
Pixel bake discards valid tag 8 as invalid · case 03
Photos rotated 90 degrees counter-clockwise are baked unrotated.
Pixel bake discards valid tag 8 as invalid · case 04
Photos rotated 90 degrees counter-clockwise are baked unrotated.
Pixel bake discards valid tag 8 as invalid · case 05
Photos rotated 90 degrees counter-clockwise are baked unrotated.
Face boxes on clockwise-rotated photos land on the mirrored side · case 01
Detected faces on portrait phone shots are highlighted on the opposite side of the frame.
Face boxes on clockwise-rotated photos land on the mirrored side · case 02
Detected faces on portrait phone shots are highlighted on the opposite side of the frame.
Face boxes on clockwise-rotated photos land on the mirrored side · case 03
Detected faces on portrait phone shots are highlighted on the opposite side of the frame.
Face boxes on clockwise-rotated photos land on the mirrored side · case 04
Detected faces on portrait phone shots are highlighted on the opposite side of the frame.
Face boxes on clockwise-rotated photos land on the mirrored side · case 05
Detected faces on portrait phone shots are highlighted on the opposite side of the frame.
Mirrored region boxes shift one pixel toward the origin · case 01
Crop rectangles on mirrored images are off by one column and can start at -1.
Mirrored region boxes shift one pixel toward the origin · case 02
Crop rectangles on mirrored images are off by one column and can start at -1.
Mirrored region boxes shift one pixel toward the origin · case 03
Crop rectangles on mirrored images are off by one column and can start at -1.
Mirrored region boxes shift one pixel toward the origin · case 04
Crop rectangles on mirrored images are off by one column and can start at -1.
Mirrored region boxes shift one pixel toward the origin · case 05
Crop rectangles on mirrored images are off by one column and can start at -1.
Region mapping transposes before applying stored-space flips · case 01
Boxes on rotated photos are mirrored or pushed outside the displayed frame.
Region mapping transposes before applying stored-space flips · case 02
Boxes on rotated photos are mirrored or pushed outside the displayed frame.
Region mapping transposes before applying stored-space flips · case 03
Boxes on rotated photos are mirrored or pushed outside the displayed frame.
Region mapping transposes before applying stored-space flips · case 04
Boxes on rotated photos are mirrored or pushed outside the displayed frame.
Region mapping transposes before applying stored-space flips · case 05
Boxes on rotated photos are mirrored or pushed outside the displayed frame.
Region clipping grows boxes that start outside the image · case 01
A face box partly above or left of the frame becomes larger after clipping.
Region clipping grows boxes that start outside the image · case 02
A face box partly above or left of the frame becomes larger after clipping.
Region clipping grows boxes that start outside the image · case 03
A face box partly above or left of the frame becomes larger after clipping.
Region clipping grows boxes that start outside the image · case 04
A face box partly above or left of the frame becomes larger after clipping.
Region clipping grows boxes that start outside the image · case 05
A face box partly above or left of the frame becomes larger after clipping.
Zero-area regions survive orientation mapping · case 01
Boxes entirely outside the image or of zero width are returned as degenerate rectangles.
Zero-area regions survive orientation mapping · case 02
Boxes entirely outside the image or of zero width are returned as degenerate rectangles.
Zero-area regions survive orientation mapping · case 03
Boxes entirely outside the image or of zero width are returned as degenerate rectangles.
Zero-area regions survive orientation mapping · case 04
Boxes entirely outside the image or of zero width are returned as degenerate rectangles.
Zero-area regions survive orientation mapping · case 05
Boxes entirely outside the image or of zero width are returned as degenerate rectangles.
INSPECTABLE BY DESIGN
Every result has a runnable source.
Runnable implementations with recorded outputs, source hashes, and explicit contracts. Related variants share a failure mechanism and belong together in evaluation splits.
Read the methodology ↗