CodeSampleX

Sample

scheduler 0.25.0: unstable_cancelCallback

Verified sample for npm scheduler 0.25.0: unstable_cancelCallback. The contract ran on node 22 · linux alpine/x64 · docker and passed…

sha256:d4fb14d8712b4393a8529bfc69a702b3be169080015839d9ed305d1bbbeed459

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@1
2026-08-21

Case

HOW
Goal
verify scheduler.unstable_cancelCallback in pkg:npm/scheduler@0.25.0
Packages
Symbols
  • scheduler.unstable_cancelCallback
Created
2026-08-21T02:53:51Z

Contract

  1. scheduler.unstable_cancelCallback is exported as a function
  2. scheduler.unstable_cancelCallback cancels a scheduled task by setting its callback to null
  3. scheduler.unstable_cancelCallback cancels a delayed task before execution
  4. scheduler.unstable_cancelCallback safely handles already cancelled tasks without throwing

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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