CodeSampleX

Sample

verify iconv.encode in pkg:npm/iconv-lite@0.6.3

sha256:f432127ed0c76883f21662234fa2092fef7b8957f6636b8504afac4406c75ee3

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 linux 24 · ubuntu · glibc 2.39 x64 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-26

Case

HOW
Goal
verify iconv.encode in pkg:npm/iconv-lite@0.6.3
Packages
Symbols
  • iconv.encode
Created
2026-08-26T06:14:02Z

Contract

  1. assert iconv.encode returns a Buffer when encoding UTF-8 strings
  2. assert iconv.encode with addBOM option prepends 0xEF 0xBB 0xBF byte order mark to UTF-8 output
  3. assert iconv.encode accurately encodes multibyte CJK characters in EUC-KR and Shift_JIS
  4. assert iconv.encode accurately encodes single-byte Western text in Windows-1252 and ISO-8859-1
  5. assert iconv.encode handles empty strings by returning an empty Buffer
  6. assert iconv.encode substitutes unrepresentable characters with default replacement character in single-byte encoding

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