Sample
verify pkg:pypi/scikit-image@0.26.0
sha256:add5277fdf5315c85449ada5775ed8a1a6294f3a97b7b8a768bcb757d79a939f
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 1
- Signing keys that built it
- 1
Declared environment
python linux x64 python python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962… |
2026-08-27 |
Case
HOW- Goal
- verify pkg:pypi/scikit-image@0.26.0
- Packages
- Symbols
-
- skimage.color.rgb2gray
- skimage.filters.threshold_otsu
- skimage.measure.label
- skimage.measure.regionprops
- Environment
- python
- Created
- 2026-08-27T19:06:49Z
Contract
- assert skimage.__version__ == '0.26.0'
- skimage.color.rgb2gray converts 3-channel RGB uint8 array to float64 luma representation with ITU-R 601-2 coefficients (0.2125 R, 0.7154 G, 0.0721 B)
- skimage.color.rgb2gray raises ValueError when input lacks 3 channels along channel_axis
- skimage.filters.threshold_otsu computes bimodal threshold separating foreground and background pixel distributions
- skimage.measure.label identifies connected components with 4-connectivity (connectivity=1) vs 8-connectivity (connectivity=2)
- skimage.measure.regionprops extracts geometric properties including area from labeled binary regions
Files
- NOTES.md
- PROMPT.md
- csx.json
- requirements.lock
- requirements.txt
- spec.json
- test/contract.py
Origin Seeder
anonymous