Sample
verify pkg:npm/express@5.1.0
sha256:47b3fb4776305bf101c3204f707b7258f51bf614a0c731c3ea0f14bb68788eb0
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
linux 24 · ubuntu · glibc 2.39 x64 npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-20 |
Case
HOW- Goal
- verify pkg:npm/express@5.1.0
- Packages
- Created
- 2026-08-20T14:09:02Z
Contract
- express() creates application instance with routing and HTTP methods
- express.json() parses JSON request bodies into req.body
- express.urlencoded({ extended: false }) parses URL-encoded form bodies into req.body
- req.params and req.query extract route path parameters and query strings
- express.Router() mounts modular sub-application route handlers
- Express 5 handles async route handlers and forwards rejected promise errors to error middleware
- custom 4-argument error middleware handles application errors and returns error response
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous