CodeSampleX

Sample

verify fastapi.__version__ in pkg:pypi/fastapi@0.141.1

sha256:8db5e7649755ae9e2b41a117d0e8305a4b516d56ac2b74d9699865d057f8e7b4

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 fastapi.__version__ in pkg:pypi/fastapi@0.141.1
Packages
Symbols
  • fastapi.__version__
Environment
python
Created
2026-08-28T04:20:23Z

Contract

  1. fastapi.__version__ is accessible as a top-level module attribute and exportable via 'from fastapi import __version__'.
  2. fastapi.__version__ is a string exactly equal to '0.141.1' matching the pinned distribution version.
  3. fastapi.__version__ adheres to semantic versioning format with major=0, minor=141, patch=1 parseable into integer components.
  4. fastapi.__version__ matches the installed distribution metadata version reported by importlib.metadata.version('fastapi').

Files

  • NOTES.md
  • PROMPT.md
  • csx.json
  • requirements.txt
  • spec.json
  • test/contract.py

Download the source artifact (tar.gz)

Origin Seeder

anonymous