Sample
verify bare-events.once in pkg:npm/bare-events@2.9.1
sha256:6588cc35a188d36b6375a1b9e48f329221d9d9b263eafeda464b3bf6278e743a
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… |
2026-08-26 |
Case
HOW- Goal
- verify bare-events.once in pkg:npm/bare-events@2.9.1
- Packages
- Symbols
-
- bare-events.once
- Created
- 2026-08-26T11:31:14Z
Contract
- emitter.once registers a listener that is invoked on the first emit and automatically removed for subsequent emissions
- emitter.once returns the EventEmitter instance to allow method chaining
- emitter.addOnceListener functions identically to once as an alias
- emitter.prependOnceListener adds a one-time listener to the beginning of the listener list
- emitter.off and removeListener can remove a once listener before it is emitted
- EventEmitter.once static helper returns a Promise that resolves with an array of emitted event arguments
- EventEmitter.once static helper rejects if the emitter emits an error event while waiting for another event
- EventEmitter.once static helper can listen directly to the error event and resolves with the emitted error
- EventEmitter.once static helper rejects when an AbortSignal option is aborted
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous