CodeSampleX

Sample

verify pkg:npm/ms@2.1.3

sha256:337a1958e9e7db2af2e097d94928bfb4c33eaf75c552f8f1e027c13106e9c9cb

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
2026-08-19T12:02:18Z

Contract

  1. ms parses duration strings in various units to milliseconds
  2. ms parses negative duration strings to negative milliseconds
  3. ms formats milliseconds to short string representation
  4. ms formats milliseconds to long string representation when long option is true
  5. ms round-trips duration string conversion and formatting

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous