CodeSampleX

Sample

verify pkg:npm/tmp@0.2.7

sha256:cec058791603add11e4bacc8a622c8e35561e6dfda019b59fc340ffa9c31a330

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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-28

Case

HOW
Goal
verify pkg:npm/tmp@0.2.7
Packages
Created
2026-08-28T05:06:31Z

Contract

  1. tmp.fileSync creates a temporary file synchronously returning name, fd, and removeCallback
  2. tmp.dirSync creates a temporary directory synchronously and removeCallback removes it
  3. tmp.file creates a temporary file asynchronously and passes path, fd, and cleanupCallback to the callback
  4. tmp.dir creates a temporary directory asynchronously and passes path and cleanupCallback to the callback
  5. tmp.tmpNameSync generates a unique temporary path matching prefix and postfix options

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.js

Download the source artifact (tar.gz)

Origin Seeder

anonymous