CodeSampleX

Sample

verify pkg:npm/streamx@2.28.0

sha256:a32de01603505556f9c09a164bf33a166274ee1ce63ec33c8a773fc64b6d39a2

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…
2026-08-23

Case

HOW
Goal
verify pkg:npm/streamx@2.28.0
Packages
Created
2026-08-23T15:20:39Z

Contract

  1. Readable stream emits data and end events when chunks are pushed and ended with null
  2. Writable stream buffers written chunks, calls write handler, and emits finish when ended
  3. Transform stream transforms incoming chunks in transform handler and forwards to downstream consumers
  4. pipeline successfully pipes data from Readable through Transform to Writable and calls completion callback
  5. pipelinePromise asynchronously connects streams and resolves when data transfer finishes
  6. PassThrough stream transfers input chunks unmodified to reader
  7. Readable stream supports async iteration yielding each pushed chunk
  8. Stream emits error and close events when destroyed with an error

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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