CodeSampleX

Sample

verify js-yaml.dump in pkg:npm/js-yaml@4.1.0

sha256:5b5952a5f28948eb9e20c09016b75be18ccb832ae103d7b19265bdc2a15970a5

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 linux 24 · ubuntu · glibc 2.39 x64 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-28

Case

HOW
Goal
verify js-yaml.dump in pkg:npm/js-yaml@4.1.0
Packages
Symbols
  • js-yaml.dump
Created
2026-08-28T03:35:51Z

Contract

  1. dump serializes JavaScript objects, arrays, and primitives into standard YAML format
  2. dump supports custom indent widths for nested objects
  3. dump sorts dictionary keys alphabetically when sortKeys is true
  4. dump formats collections in inline flow style when flowLevel is configured
  5. dump enforces explicit double or single quotes around strings with forceQuotes and quotingType
  6. dump omits non-serializable values such as functions without throwing when skipInvalid is true
  7. dump duplicates repeated object references instead of generating anchors when noRefs is true

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