CodeSampleX

Sample

dayjs 1.11.19

Verified sample for npm dayjs 1.11.19. The contract ran on node 22 · linux alpine/x64 · docker and passed: assert dayjs.extend(isBetween) enables isBetween…

sha256:35fe92f4b7c7044ef2a8945351efd687eebac6008fed64137b11ca494ed1d043

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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