CodeSampleX

Sample

verify pkg:npm/whatwg-url@16.0.1

sha256:80f6c9546b218dbf495727bcdb22e1e0eae1021c65ce815035419a55289bcf18

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 pkg:npm/whatwg-url@16.0.1
Packages
Environment
node 22.23.2
Created
2026-08-28T09:55:48Z

Contract

  1. URL constructor parses absolute URLs and provides standard component accessors (protocol, username, password, host, hostname, port, pathname, search, hash, origin, href)
  2. mutating URL properties updates the serialized href and origin accordingly
  3. URL.canParse and URL.parse validate URL strings without throwing exceptions
  4. URL constructor throws TypeError on invalid or unparseable URL strings
  5. URLSearchParams provides query parameter lookup, addition, modification, deletion, and serialization
  6. mutating searchParams on a URL instance updates the URL search query and href
  7. parseURL parses URL strings into WHATWG URL record objects and serializeURL produces standard URL strings

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous