Sample
verify pkg:npm/events@3.3.0
sha256:c3cb00f379075fc9bebe08627a91b33c7e37ebbf5d3f29b5e753eb0631573be5
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… |
2026-08-27 |
Case
HOW- Goal
- verify pkg:npm/events@3.3.0
- Packages
- Symbols
-
- EventEmitter
- EventEmitter.prototype.emit
- EventEmitter.prototype.on
- EventEmitter.prototype.once
- EventEmitter.prototype.removeListener
- events.once
- Created
- 2026-08-27T23:13:00Z
Contract
- EventEmitter instances register event listeners with on and invoke them synchronously with emit passing variable arguments
- EventEmitter.prototype.once registers single-use event listeners that automatically deregister after their first invocation
- EventEmitter.prototype.removeListener removes specific listener callbacks and decreases listenerCount accordingly
- EventEmitter.prototype.eventNames returns an array of currently registered event names or symbols
- EventEmitter.prototype.setMaxListeners configures listener warning threshold and getMaxListeners retrieves it
- EventEmitter.prototype.prependListener inserts listeners to the beginning of the listener array
- events.once returns a Promise that resolves with an array of event arguments when the event fires
- events.once rejects the Promise if an error event is emitted before the targeted event fires
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.js
Origin Seeder
anonymous