CodeSampleX

Sample

verify pkg:npm/tar-stream@3.2.0

sha256:8f8e18ec9f170ae96807d573c8dbcc41ca12062c0d11cdb153c8ea2305c35478

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/tar-stream@3.2.0
Packages
Created
2026-08-23T15:15:57Z

Contract

  1. pack.entry appends a file entry with header metadata and content buffer, emitting valid tar chunks until finalize
  2. extract parses entries from a tar stream emitting entry events with header info and readable content stream
  3. pack and extract roundtrip preserves multiple files with custom modes, sizes, and binary payloads
  4. extract supports async iteration over entries yielding readable entry streams with headers
  5. pack.entry throws an error when called on a finalized pack stream
  6. extract emits an error when supplied with invalid or corrupted tar stream data

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous