CodeSampleX

Sample

verify path-exists.sync in pkg:npm/path-exists@4.0.0

sha256:65fbd1ee73b3b55d3f1e76e3b672c919947c3ac017f5bd077806378e722d3034

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@1
2026-08-20

Case

HOW
Goal
verify path-exists.sync in pkg:npm/path-exists@4.0.0
Packages
Symbols
  • path-exists.sync
Environment
node 22.23.2
Created
2026-08-20T18:14:01Z

Contract

  1. pathExists.sync returns true for existing file paths
  2. pathExists.sync returns false for non-existing file paths

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous