CodeSampleX

Sample

verify pkg:npm/%40socket.io/component-emitter@3.1.2

sha256:3536406a234ce6301233915aadcfcb9473a71ea24d1ef54adc2a878eba608663

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/%40socket.io/component-emitter@3.1.2
Packages
Environment
node 22.23.2
Created
2026-08-27T13:13:37Z

Contract

  1. Emitter instance supports event registration and chaining with on and addEventListener
  2. emit and emitReserved dispatch variadic arguments to registered listeners
  3. once listener executes only once and unregisters itself before invocation
  4. off, removeListener, and removeEventListener unregister matching single listeners
  5. off and removeAllListeners with event or no arguments clear listeners
  6. hasListeners and listeners return active listeners array and boolean status
  7. Emitter constructor invoked without new or as mixin enhances target object

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