CodeSampleX

Sample

verify pkg:npm/dayjs@1.11.19

sha256:35fe92f4b7c7044ef2a8945351efd687eebac6008fed64137b11ca494ed1d043

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 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/dayjs@1.11.19
Packages
Environment
node 22.23.2
Created
2026-08-20T20:42:38Z

Contract

  1. assert dayjs.extend(isBetween) enables isBetween method on Dayjs instances
  2. assert isBetween defaults to exclusive comparison '()' excluding start and end boundary dates
  3. assert isBetween with inclusivity flag '[]' includes both start and end boundary dates
  4. assert isBetween with inclusivity flag '[)' includes start date and excludes end date
  5. assert isBetween with inclusivity flag '(]' excludes start date and includes end date
  6. assert isBetween with unit granularity 'year' evaluates boundaries based on calendar year

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