CodeSampleX

Sample

verify pkg:pypi/urllib3@2.7.0

sha256:26c46458669640f299cfa97be9ffb002a08d9516a20d0e33e810bef3deefcf90

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
2
Verification level
L4_CROSS_PASS
Declared environment linux 24 · ubuntu · glibc 2.39 x64 pip

Verification-run environments

Environment Contract Stages Run
python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 SKIPPED compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL
CONTAINER_RUN · python@1
2026-08-20
python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1
2026-08-20

Case

HOW
Goal
verify pkg:pypi/urllib3@2.7.0
Packages
Created
2026-08-20T03:16:20Z

Contract

  1. urllib3.util.parse_url parses URL strings into structured Url objects with scheme, host, port, path, query, and fragment
  2. urllib3.util.Url constructs and formats normalized URL strings and relative request URIs from individual components
  3. urllib3.util.make_headers generates standard HTTP request headers for basic authentication, custom user agent, accept encoding, and keep-alive

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous