CodeSampleX

Sample

verify pkg:npm/deep-eql@5.0.2

sha256:d71bbf243ca68e5038a2bf5806b394836dbbe503038b8e8f9fed49ab3639a4d1

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 pkg:npm/deep-eql@5.0.2
Packages
Environment
node 22.23.2
Created
2026-08-26T08:58:24Z

Contract

  1. deepEqual returns true for identical primitives and false for distinct primitives
  2. deepEqual treats NaN as equal to NaN and distinguishes +0 from -0
  3. deepEqual evaluates Date instances by their timestamps
  4. deepEqual evaluates RegExp instances by their source pattern and flags
  5. deepEqual evaluates Error instances by name, message, and code properties
  6. deepEqual evaluates nested arrays, sets, and maps recursively
  7. deepEqual evaluates nested objects regardless of key order and includes symbol properties
  8. deepEqual handles circular references without throwing stack overflow errors
  9. deepEqual supports custom comparator functions to override equality logic

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