CodeSampleX

Sample

verify idna.encode in pkg:pypi/idna@3.11

sha256:c0c67147b7c63059afeb65b6ec7f492f4c48a7bd95f1f854417dfb0494fca163

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 3.12 linux 24 · ubuntu · glibc 2.39 x64 python 3.12 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…		 2026-08-26

Case

HOW
Goal
verify idna.encode in pkg:pypi/idna@3.11
Packages
Symbols
  • idna.encode
Environment
python 3.12
Created
2026-08-26T04:39:10Z

Contract

  1. idna.encode(domain) converts internationalized domain names into Punycode ASCII-compatible encoding (ACE) bytes
  2. idna.encode(domain) preserves ASCII domain names and trailing dots in returned bytes
  3. idna.encode(domain, uts46=True) normalizes and case-folds uppercase characters before encoding
  4. idna.encode(domain) raises idna.core.InvalidCodepoint for uppercase codepoints under strict IDNA2008
  5. idna.encode(domain) raises idna.core.IDNAError when domain contains empty labels
  6. idna.encode(domain) raises TypeError when passed unsupported input types

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous