CodeSampleX

Sample

verify pkg:npm/tar-fs@3.1.3

sha256:f3e5ec703b1c0b1ac8a0ef1bd61f8bcb4807a8eab72999265535497339c081d2

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-fs@3.1.3
Packages
Created
2026-08-23T15:13:58Z

Contract

  1. tarFs exports pack and extract functions
  2. tarFs.pack returns a readable stream and tarFs.extract returns a writable stream
  3. tarFs.pack creates a tar archive of directory contents and tarFs.extract unpacks files preserving hierarchy
  4. tarFs.pack with entries option archives only specified files
  5. tarFs.pack with ignore option excludes matching files from archive
  6. tarFs.pack with map option transforms tar entry headers
  7. tarFs.extract with strip option removes leading directory path components
  8. copyDirectory helper copies directory contents via piped pack and extract streams

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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