CodeSampleX

Sample

fastq 1.20.1: verify fast queue with concurrency

Verified sample for npm fastq 1.20.1: verify fast queue with concurrency. The contract ran on node 22 · linux alpine/x64 · docker and passed: fastq creates a…

sha256:cbebc2380ae21c13a47cc7727125c1ceaa2e98653509f4dba9957a7a01e58785

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
2026-08-20

Case

HOW
Goal
verify pkg:npm/fastq@1.20.1 fast queue with concurrency
Packages
Symbols
  • fastq
Created
2026-08-20T14:16:22Z

Contract

  1. fastq creates a callback-based queue with concurrency limit, push, unshift, and state methods
  2. fastq notifies via drain event and supports pause and resume
  3. fastq handles errors via worker callbacks
  4. fastq.promise provides async/await queue interface with push, unshift, and drained
  5. fastq.promise handles async worker rejection

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

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