CodeSampleX

Sample

verify compress-commons.ZipArchiveEntry in pkg:npm/compress-commons@4.1.2

sha256:4e8b3d801324345af6935a83ee069c81043c40201d4730d6fdc197c5659a4932

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…		 2026-08-28

Case

HOW
Goal
verify compress-commons.ZipArchiveEntry in pkg:npm/compress-commons@4.1.2
Packages
Symbols
  • compress-commons.ZipArchiveEntry
Environment
node 22.23.2
Created
2026-08-28T07:21:23Z

Contract

  1. ZipArchiveEntry instantiates with an entry name and default attributes
  2. ZipArchiveEntry sets and gets last modified timestamp as Date and DOS format
  3. ZipArchiveEntry tracks uncompressed size, compressed size, and CRC32 checksum
  4. ZipArchiveEntry configures entry comments and enables UTF-8 flag for non-ASCII characters
  5. ZipArchiveEntry sets Unix permissions and identifies directory or regular file entries
  6. ZipArchiveEntry detects ZIP64 requirements for entries exceeding standard size limits
  7. ZipArchiveEntry stores and retrieves custom extra field buffers
  8. ZipArchiveEntry validates input arguments and rejects negative sizes or invalid timestamps
  9. inspectArchiveEntry helper produces comprehensive property summary

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous