CodeSampleX

Sample

verify pkg:npm/data-uri-to-buffer@6.0.2

sha256:a25afc089a6d14264fe3eb129d6b7874eede35fe5ce45f55fdacc9b91a4d13b5

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…		 2026-08-23

Case

HOW
Goal
verify pkg:npm/data-uri-to-buffer@6.0.2
Packages
Symbols
  • dataUriToBuffer
Created
2026-08-23T15:44:23Z

Contract

  1. dataUriToBuffer decodes plain text data URI with default MIME type and charset
  2. dataUriToBuffer decodes base64 encoded text data URI with explicit MIME type
  3. dataUriToBuffer decodes base64 encoded JSON data URI with custom charset
  4. dataUriToBuffer accepts URL instances in addition to string URIs
  5. dataUriToBuffer decodes binary data URI with application/octet-stream MIME type
  6. dataUriToBuffer handles empty data URI returning empty buffer
  7. dataUriToBuffer parses custom MIME type parameters into typeFull and charset
  8. dataUriToBuffer throws TypeError when passed a non-data URI protocol
  9. dataUriToBuffer throws TypeError when passed a malformed data URI without comma

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous