CodeSampleX

Sample

verify pkg:npm/%40jest/expect-utils@29.7.0

sha256:47710044294bb121c7f79bb22c3e052f8fbb6a44f676422e88d7371c9b3d4472

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…		 2026-08-23

Case

HOW
Goal
verify pkg:npm/%40jest/expect-utils@29.7.0
Packages
Symbols
  • equals
Environment
node 22.23.2
Created
2026-08-23T16:19:38Z

Contract

  1. equals performs structural deep equality check on primitives, nested objects, arrays, Dates, RegExps, Sets, and Maps
  2. equals resolves circular references without infinite recursion
  3. equals supports custom tester functions for specialized type comparisons
  4. equals with strictCheck false allows matching missing properties with undefined properties
  5. equals with strictCheck true rejects object property mismatches where one property is undefined and missing on the other
  6. equals with strictCheck true rejects sparse array vs dense undefined array differences

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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