CodeSampleX

Sample

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

sha256:84a72c1c4a44e54d43d634d67b8b64e2143ada95137498eecf32b37ee63bc375

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 iconv.decode in pkg:npm/iconv-lite@0.6.3
Packages
Symbols
  • iconv.decode
Environment
node 22.23.2
Created
2026-08-26T06:14:39Z

Contract

  1. iconv.decode(buf, 'utf-8') decodes UTF-8 Buffer to string
  2. iconv.decode(buf, encoding) decodes single-byte encodings including windows-1251 and iso-8859-1
  3. iconv.decode(buf, encoding) decodes multi-byte encodings including utf-16le and gbk
  4. iconv.decode canonicalizes encoding names (case-insensitive and punctuation-insensitive aliases like 'UTF-8', 'utf8', 'WINDOWS-1251', 'cp1251')
  5. iconv.decode strips leading byte order mark (BOM) by default for BOM-aware encodings like UTF-8
  6. iconv.decode(buf, encoding, { stripBOM: false }) preserves leading BOM '\uFEFF'
  7. iconv.decode returns empty string for empty Buffer input
  8. iconv.decode replaces invalid byte sequences with unicode replacement character '\uFFFD'
  9. iconv.decode throws Error for unrecognized encoding names
  10. iconv.decode accepts string input by coercing binary string to Buffer

Files

  • NOTES.md
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous