CodeSampleX

Sample

verify pkg:npm/js-tokens@4.0.0

sha256:b96b81ce09d9c6583ec36dfa0676bc60299b074ad42919ee50825ee937eb3260

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@1
2026-08-21

Case

HOW
Goal
verify pkg:npm/js-tokens@4.0.0
Packages
Environment
node 22.23.2
Created
2026-08-21T09:18:44Z

Contract

  1. jsTokens.default is a global RegExp that matches JavaScript tokens
  2. matchToToken converts RegExp match results into token objects with type, value, and closed properties
  3. tokenize correctly classifies names, keywords, punctuators, numbers, and whitespace
  4. tokenize handles single-line comments, block comments, and identifies unclosed comments
  5. tokenize parses single-quoted, double-quoted, and template strings, marking closed or unclosed status
  6. tokenize parses regular expression literals with flags

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