CodeSampleX

Sample

verify pkg:npm/yallist@3.1.1

sha256:1b9dba190ab0f7048661c579dda15e3e01b905635770771397abd3df6e1f86ea

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

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
2026-08-21

Case

HOW
Goal
verify pkg:npm/yallist@3.1.1
Packages
Environment
node 22.23.2
Created
2026-08-21T15:45:34Z

Contract

  1. Yallist creates a doubly-linked list from an iterable or arguments
  2. push and unshift insert elements at the tail and head respectively
  3. pop and shift remove and return elements from the tail and head respectively
  4. forEach and forEachReverse traverse elements in forward and reverse order
  5. map and mapReverse create new Yallist instances with transformed elements
  6. slice and sliceReverse extract sublists in forward and reverse order
  7. toArray and toArrayReverse convert the linked list to forward and reverse arrays
  8. pushNode, unshiftNode, and removeNode manipulate Node instances directly
  9. reverse reverses the linked list elements in place

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