CodeSampleX

Sample

find-up 5.0.0

Verified sample for npm find-up 5.0.0. The contract ran on node 22 · linux alpine/x64 · docker and passed: assert findUp traverses parent directories…

sha256:474f25b0c64abdcbd4a1b4f72ed814377774403999e4dcf9bffe59d34d0c3c1e

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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/find-up@5.0.0
Packages
Environment
node 22.23.2
Created
2026-08-20T22:08:44Z

Contract

  1. assert findUp traverses parent directories asynchronously to resolve the first matching file path
  2. assert findUp returns undefined when the target file is not found in parent hierarchy
  3. assert findUp.sync traverses parent directories synchronously to resolve the matching file path
  4. assert findUp.sync returns undefined when the target file is not found
  5. assert findUp accepts an array of filenames and matches by order of priority in each directory
  6. assert findUp with type directory resolves matching directory path instead of regular file
  7. assert findUp matcher function returning findUp.stop halts directory traversal
  8. assert findUp.exists and findUp.sync.exists verify whether a path exists asynchronously and synchronously

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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