CodeSampleX

Sample

verify pkg:pypi/idna@3.18

sha256:bce9de5fa823c4532a9fb4215f76e656c0d92b22a1639f47a5d1ed881efb7868

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 linux 24 · ubuntu · glibc 2.39 x64 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 pkg:pypi/idna@3.18
Packages
Created
2026-08-28T04:15:13Z

Contract

  1. idna.encode converts internationalized domain names into Punycode ASCII-compatible encoding bytes and preserves trailing dots
  2. idna.encode with uts46=True normalizes uppercase characters before encoding
  3. idna.encode raises IDNAError when domain is empty or contains empty labels
  4. idna.decode decodes Punycode byte sequences and string representations to Unicode domain strings
  5. idna.decode raises IDNAError on malformed Punycode labels
  6. idna.alabel and idna.ulabel convert individual domain labels between Unicode and ACE bytes
  7. idna.uts46_remap remaps and normalizes domain names following Unicode UTS 46
  8. idna.check_bidi validates bidirectional domain name labels

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous