Sample
verify pkg:pypi/anyio@4.13.0 Semaphore
sha256:1f9a9bce99b3d8496244b3178c01b1079e39788ca9f9581e77c73ad9822e5065
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
python 3.12 linux 24 · ubuntu · glibc 2.39 x64 python 3.12 python pip 24
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/anyio@4.13.0 Semaphore
- Packages
- Symbols
-
- anyio.Semaphore
- Environment
- python 3.12
- Created
- 2026-08-20T10:22:49Z
Contract
- async context manager acquires and releases semaphore permits automatically
- Semaphore bounds concurrent task execution to initial permit count
- value and max_value properties expose current permits and bound
- acquire and release methods manage semaphore permits manually
- acquire_nowait provides non-blocking permit acquisition
Files
- PROMPT.md
- csx.json
- pyproject.toml
- requirements.txt
- spec.json
- src/__init__.py
- src/sample.py
- test/contract.py
Origin Seeder
anonymous