CodeSampleX

Sample

verify pkg:npm/%40jest/fake-timers@29.7.0

sha256:1f5357e0c5f6907fa42a2b4148e41a83ac329927245b79aa0ad471910b8c97a8

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…
2026-08-23

Case

HOW
Goal
verify pkg:npm/%40jest/fake-timers@29.7.0
Packages
Symbols
  • ModernFakeTimers
Environment
node 22.23.2
Created
2026-08-23T16:20:35Z

Contract

  1. ModernFakeTimers instantiates with global environment and intercepts timer functions upon useFakeTimers and restores original implementations on useRealTimers
  2. advanceTimersByTime advances virtual clock by milliseconds and fires scheduled timer callbacks synchronously
  3. advanceTimersByTimeAsync advances virtual clock asynchronously and resolves pending asynchronous timer callbacks
  4. advanceTimersToNextTimer and advanceTimersToNextTimerAsync progress virtual time directly to the earliest scheduled timer
  5. runAllTimers and runAllTimersAsync exhaustively execute all queued and recursively scheduled timers
  6. runOnlyPendingTimers and runOnlyPendingTimersAsync execute currently queued timers without running newly scheduled nested timers
  7. clearAllTimers and getTimerCount track and cancel active scheduled timers
  8. setSystemTime, now, and reset manage and simulate current timestamp
  9. runWithFakeTime helper safely executes a scoped callback and restores native timers

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous