CodeSampleX

Sample

convert duration strings to milliseconds and format milliseconds to human readable strings with ms

sha256:a49bb482aeb7db20627f3f199b04b58a27700724743caed37f07a267bd83d93d

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
convert duration strings to milliseconds and format milliseconds to human readable strings with ms
Packages
Symbols
  • ms
Environment
node
Created
2026-08-18T19:56:18Z

Contract

  1. ms converts duration strings to milliseconds
  2. ms parses negative duration strings to negative milliseconds
  3. ms formats millisecond numbers to short human readable strings
  4. ms formats millisecond numbers to long readable strings with options
  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