CodeSampleX

Sample

verify pkg:npm/jest-util@29.7.0

sha256:cc905a53fcee2f054b9fa6dff8caea263288fc1adb485c3b76e1e00999b70ae4

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/jest-util@29.7.0
Packages
Environment
node 22.23.2
Created
2026-08-23T16:13:48Z

Contract

  1. pluralize formats singular and plural counts with given words
  2. formatTime formats millisecond and microsecond durations with metric prefix units and padding
  3. replacePathSepForGlob normalizes Windows backslash path separators to POSIX forward slashes
  4. globsToMatcher converts an array of glob strings into a matching function
  5. isPromise distinguishes Promises and thenables from non-promise values
  6. isNonNullable identifies non-null and non-undefined values
  7. deepCyclicCopy creates a deep copy of complex objects preserving circular and nested references
  8. ErrorWithStack constructs an Error instance capturing stack trace at the specified callsite
  9. convertDescriptorToString stringifies named functions, classes, and primitives while rejecting unsupported objects
  10. interopRequireDefault normalizes CommonJS and ES module default exports
  11. invariant asserts truthy conditions and throws Error with given message on falsy conditions
  12. specialChars provides terminal formatting escape sequences and status icons

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous