Sample
verify pkg:npm/finalhandler@2.1.1
sha256:f8bca77bc5c4ae0e07686a52bfada7bfd59bbc35593effd0fc692649058b72ab
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/finalhandler@2.1.1
- Packages
- Created
- 2026-08-20T13:49:41Z
Contract
- finalhandler(req, res) produces a 404 Not Found response when called without an error for unhandled requests
- finalhandler(req, res) produces a 500 or error status response matching err.status/err.statusCode when called with an error
- finalhandler(req, res, { onerror }) invokes the onerror callback with the error and request/response objects
- finalhandler(req, res, { env: 'production' }) omits error details and stack trace in the response body in production mode
- finalhandler(req, res) terminates or destroys socket connection if response headers have already been sent when an error occurs
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous