CodeSampleX

Sample

verify luxon.DateTime in pkg:npm/luxon@3.6.1

sha256:a264b42ed629e40787bcd1f75946050de98106be411d62b910167ce4a7e98c3d

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…
2026-08-27

Case

HOW
Goal
verify luxon.DateTime in pkg:npm/luxon@3.6.1
Packages
Symbols
  • luxon.DateTime
Environment
node 22.23.2
Created
2026-08-27T23:46:39Z

Contract

  1. assert DateTime is exported as a function/class from luxon
  2. assert DateTime.fromISO parses ISO 8601 strings into valid UTC DateTime instances
  3. assert DateTime.utc creates valid UTC DateTime instances with exact date components
  4. assert DateTime.plus performs date arithmetic by adding duration offsets
  5. assert DateTime.fromISO returns invalid DateTime with invalidReason on malformed input

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous