CodeSampleX

Sample

verify pkg:npm/pump@3.0.4

sha256:eb6aeac4edccdcbb8f0695c85355496257cb56af5e87be78b67049b328bac748

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 linux 24 · ubuntu · glibc 2.39 x64 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
verify pkg:npm/pump@3.0.4
Packages
Created
2026-08-23T13:25:32Z

Contract

  1. pump throws Error when fewer than two streams are provided
  2. pump pipes data from readable stream through transform stream to writable stream and invokes callback on success
  3. pump accepts an array of streams and completes data piping successfully
  4. pump invokes callback with error and destroys downstream writable stream when upstream readable stream emits an error
  5. pump invokes callback with error and destroys upstream readable stream when downstream writable stream emits an error
  6. pump destroys all streams in the pipeline when an intermediate transform stream emits an error
  7. pump returns the destination stream from the pipeline

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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