CodeSampleX

Sample

verify pkg:npm/%40jest/get-type@30.1.0

sha256:087f804549111071559eb04b87e3622369039a395db0d1699ae8f8b2ab6dc59a

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…
2026-08-27

Case

HOW
Goal
verify pkg:npm/%40jest/get-type@30.1.0
Packages
Symbols
  • getType
  • isPrimitive
Environment
node 22.23.2
Created
2026-08-27T22:45:45Z

Contract

  1. getType returns string identifier for primitive types: undefined, null, boolean, number, string, symbol, and bigint
  2. getType returns string identifier for object instances: array, object, regexp, map, set, date, and function
  3. isPrimitive returns true for primitive values (including null and undefined) and false for objects, arrays, and functions

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