Sample
verify PIL.UnidentifiedImageError in pkg:pypi/pillow@12.3.0
sha256:d975b954d8ef65fab90f8d30444e370d13b47b9e1980020451e64e7ac9717a7d
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 24 · ubuntu · glibc 2.39 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… |
2026-08-28 |
Case
HOW- Goal
- verify PIL.UnidentifiedImageError in pkg:pypi/pillow@12.3.0
- Packages
- Symbols
-
- PIL.UnidentifiedImageError
- Environment
- python
- Created
- 2026-08-28T04:23:25Z
Contract
- PIL.UnidentifiedImageError is exported by both PIL and PIL.Image and inherits from OSError and Exception.
- Image.open() raises UnidentifiedImageError when given an empty byte stream (io.BytesIO(b"")).
- Image.open() raises UnidentifiedImageError when given arbitrary non-image binary or text data.
- Image.open() raises UnidentifiedImageError when the image format is not included in the allowed formats parameter list.
- Image.open() successfully loads valid image streams without raising UnidentifiedImageError.
Files
- NOTES.md
- PROMPT.md
- csx.json
- requirements.txt
- spec.json
- test/contract.py
Origin Seeder
anonymous