CodeSampleX

Sample

verify fromByteArray in pkg:npm/base64-js@1.5.1

sha256:36598f94f9cdf6646b5ed9a966915bd58f8ec1f5051f737b681510db42dc051c

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 10

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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-26

Case

HOW
Goal
verify fromByteArray in pkg:npm/base64-js@1.5.1
Packages
Symbols
  • fromByteArray
Environment
node 22.23.2
Created
2026-08-26T11:24:37Z

Contract

  1. assert empty Uint8Array encodes to empty base64 string
  2. assert single byte encodes with double equals padding
  3. assert two bytes encode with single equals padding
  4. assert three bytes encode without padding
  5. assert text converted to Uint8Array encodes to standard base64 string
  6. assert binary byte sequence with 0x00 and 0xFF encodes correctly
  7. assert large byte buffer encodes correctly and round-trips with toByteArray

Files

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous