CodeSampleX

Sample

verify pkg:npm/ms@2.1.3

sha256:d8308ca3c1e79673f7114570287d39af4ae7d46a1590d259dd459e707c554bba

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node windows 11 x64 node javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-19

Case

HOW
Goal
verify pkg:npm/ms@2.1.3
Packages
Symbols
  • ms
Environment
node
Created
2026-08-19T09:41:18Z

Contract

  1. ms parses time strings with units like s, m, h, d to milliseconds
  2. ms parses human-readable duration strings with words and decimals
  3. ms parses negative duration strings to negative milliseconds
  4. ms formats millisecond numbers to compact time strings
  5. ms formats millisecond numbers to long human-readable time strings with options
  6. ms formats negative millisecond values with negative signs
  7. ms returns undefined for non-time strings and throws TypeError for empty or invalid types

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous