CodeSampleX

Sample

verify string_decoder.StringDecoder in pkg:npm/string_decoder@1.3.0

sha256:623c6142bb0da0a0b73e4ec0c0db0895db0790ea592d8a6a49f11cc45d0d8750

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…		 2026-08-23

Case

HOW
Goal
verify string_decoder.StringDecoder in pkg:npm/string_decoder@1.3.0
Packages
Symbols
  • string_decoder.StringDecoder
Environment
node 22.23.2
Created
2026-08-23T08:07:15Z

Contract

  1. StringDecoder instantiates and decodes complete UTF-8 buffers
  2. StringDecoder buffers incomplete multi-byte UTF-8 sequences across chunk boundaries
  3. StringDecoder end with buffer parameter decodes trailing buffer and flushes in a single call
  4. StringDecoder end flushes incomplete trailing multi-byte sequences as unicode replacement character
  5. StringDecoder supports base64, hex, and latin1 encodings
  6. decodeChunks streams and decodes multi-part buffer arrays preserving character boundaries

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