CodeSampleX

Sample

verify jest.version in pkg:npm/jest@29.6.3

sha256:d842b78ab5617b892bef5568e12185f54945347cf7c7448dc74466627fc68f88

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript 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…
2026-08-27

Case

HOW
Goal
verify jest.version in pkg:npm/jest@29.6.3
Packages
Symbols
  • jest.version
Environment
node 22.23.2
Created
2026-08-27T20:56:20Z

Contract

  1. jest.getVersion is a function returning the package version string 29.6.3
  2. jest.version property is undefined on the jest namespace requiring getVersion() to query version
  3. require('jest/package.json').version matches jest.getVersion()
  4. jest module exports core symbols run, runCLI, SearchSource, createTestScheduler alongside getVersion

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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