CodeSampleX

Sample

verify pkg:npm/tiny-typed-emitter@2.1.0

sha256:c48b702f799eaa3caf798bd4e3bf60e90b6139cf7c81710b45e50e8b3853c1d2

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/tiny-typed-emitter@2.1.0
Packages
Symbols
  • TypedEmitter
Environment
node 22.23.2
Created
2026-08-26T09:35:38Z

Contract

  1. TypedEmitter instantiates and emits typed events to registered listeners
  2. TypedEmitter once method executes listener only on first emission
  3. TypedEmitter prependListener and prependOnceListener add listeners to the start of the listener array
  4. TypedEmitter off and removeListener unregister specific event callbacks
  5. TypedEmitter removeAllListeners removes all listeners for an event or all events
  6. TypedEmitter tracks listenerCount, eventNames, and listeners correctly
  7. TypedEmitter setMaxListeners and getMaxListeners manage listener limits and return instance for chaining

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous