CodeSampleX

Sample

verify pkg:npm/%40types/js-yaml@4.0.9

sha256:702fbe48318c96c9ad2e487460ac77fbc136e97e4091594bcc405aae1c50b398

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…
2026-08-23

Case

HOW
Goal
verify pkg:npm/%40types/js-yaml@4.0.9
Packages
Environment
node 22.23.2
Created
2026-08-23T15:02:14Z

Contract

  1. load parses YAML strings into JavaScript objects
  2. dump serializes JavaScript data structures into formatted YAML strings
  3. loadAll parses multiple documents from a YAML stream
  4. dump with sortKeys formats object keys in deterministic alphabetical order
  5. dump with indent and flowLevel controls indentation and nesting styles
  6. load throws YAMLException when given malformed YAML input
  7. custom Type and Schema extend parsing capabilities for custom tags

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