CodeSampleX

Sample

verify starlette.types.Message in pkg:pypi/starlette@1.6.0

sha256:42db7e6d3d5e1f7fb2ac52967096df585c6a4fd46e757614854b72f83c22e692

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 starlette.types.Message in pkg:pypi/starlette@1.6.0
Packages
Symbols
  • starlette.types.Message
Environment
python
Created
2026-08-28T06:45:29Z

Contract

  1. starlette.types.Message is a MutableMapping alias representing ASGI event dictionaries
  2. ASGI receive callable produces Message instances that can be inspected and transformed by middleware
  3. Intercepting outgoing http.response.start Message allows mutating status code and response headers
  4. Outgoing http.response.body Message carries response body bytes and more_body continuation flag
  5. Direct invocation of ASGIApp passes Message dicts across receive and send without HTTP network server

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous