Sample
express 5.2.1
Verified sample for npm express 5.2.1. The contract ran on node 22 · linux alpine/x64 · docker and passed: express() creates an application instance and…
sha256:9ab8b3fc8e0562fee4c6b35848021c4df71d8b332ee57bc250caa38421deb44c
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 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@5.2.1
- Packages
- Created
- 2026-08-20T13:48:38Z
Contract
- express() creates an application instance and express.Router() creates modular route handlers
- nested router with mergeParams: true inherits and resolves parent path parameters across route hierarchies
- res.set() configures custom response headers, res.cookie() sets HttpOnly and SameSite cookie options, and res.status().json() delivers formatted JSON responses
- async route handlers returning rejected promises automatically propagate errors to Express error-handling middleware without unhandled rejections
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous