CodeSampleX

Sample

convert time string to milliseconds and format milliseconds with ms

sha256:d5f5f28305b7a1d5ce5111bdd14ab28b90771fae277f80f040421fe30abfae99

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 22 windows 11 x64 node 22 javascript npm 10

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 time string to milliseconds and format milliseconds with ms
Packages
Symbols
  • ms
Environment
node 22
Created
2026-08-19T09:21:01Z

Contract

  1. ms parses duration strings with various units into milliseconds
  2. ms parses negative duration strings into negative milliseconds
  3. ms formats milliseconds into short duration strings
  4. ms formats milliseconds into long format strings with long option
  5. ms round-trips duration strings and millisecond numbers

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