CodeSampleX

Sample

verify jest-snapshot in pkg:npm/jest-snapshot@29.7.0

sha256:e15d90a251d32033d7952ad68ff28f210b8d1b964717595749e7b046f9e6df64

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 10

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…
2026-08-26

Case

HOW
Goal
verify jest-snapshot in pkg:npm/jest-snapshot@29.7.0
Packages
Symbols
  • jest-snapshot
Environment
node 22.23.2
Created
2026-08-26T11:28:42Z

Contract

  1. SnapshotState creates, saves, and manages snapshot state files for test suites
  2. toMatchSnapshot compares received objects against stored snapshots and returns a pass/fail match result
  3. isSnapshotPath and EXTENSION correctly identify snapshot file extensions
  4. addSerializer registers custom serializers used when formatting objects during snapshot matching

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous