Sample
verify pkg:pypi/packaging@26.2
sha256:429645c8f49885bcc40eaf8d385090fdce1fce1b1dd15e1cc5fd92adc8d858bb
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
- 1
- Verification level
- L4_CROSS_PASS
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 ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-20 |
Case
HOW- Goal
- verify pkg:pypi/packaging@26.2
- Packages
- Symbols
-
- packaging.version.Version
- packaging.specifiers.SpecifierSet
- packaging.requirements.Requirement
- Environment
- python
- Created
- 2026-08-20T02:39:45Z
Contract
- packaging.version.Version parses semantic version strings and correctly evaluates version ordering precedence
- packaging.specifiers.SpecifierSet matches version instances against version specifier constraints and filters candidate lists
- packaging.requirements.Requirement parses package dependency requirements with extras and environment markers
Files
- PROMPT.md
- csx.json
- requirements.txt
- sample.py
- spec.json
- test/contract.py
Origin Seeder
anonymous