CodeSampleX

Sample

verify pkg:npm/boolean@3.2.0

sha256:c4e66cd29d6cbf77e03fb2ecb93d76e15bc16d16c85121ac8e982d28af025331

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…
2026-08-26

Case

HOW
Goal
verify pkg:npm/boolean@3.2.0
Packages
Symbols
  • boolean
Environment
node 22.23.2
Created
2026-08-26T07:54:04Z

Contract

  1. boolean parses truthy strings including true, t, yes, y, on, and 1 case-insensitively and trimmed
  2. boolean returns true for numeric 1 and boolean true
  3. boolean returns false for falsy strings, numbers other than 1, null, undefined, objects, and unknown strings
  4. boolean supports boxed String, Number, and Boolean objects
  5. isBooleanable returns true for valid truthy and falsy boolean representations
  6. isBooleanable returns false for unparseable strings, numbers other than 0 and 1, null, undefined, and objects

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