CodeSampleX

Sample

verify pkg:npm/ms@2.1.3

sha256:4b9bbe232c07bb75a127ee822f3c6e96fa830b0b5e2f38738ce2d9a71d6a9adc

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 windows 11 x64 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
Created
2026-08-19T09:35:25Z

Contract

  1. ms parses duration strings with various units into milliseconds
  2. ms parses negative duration strings into negative milliseconds
  3. ms formats millisecond values into human readable short strings
  4. ms formats millisecond values into human readable long 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