CodeSampleX

Sample

verify pkg:npm/mime@2.6.0

sha256:70bb85f137647c655eac8b0e7a00b56bc8007cb3c06e69d8250f602431c5d4d6

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…
2026-08-28

Case

HOW
Goal
verify pkg:npm/mime@2.6.0
Packages
Environment
node 22.23.2
Created
2026-08-28T05:31:20Z

Contract

  1. mime.getType returns the standard MIME content type for file extensions and paths
  2. mime.getType returns null for unrecognized file extensions or extensionless paths
  3. mime.getExtension returns the canonical file extension for a given MIME content type
  4. mime.getExtension extracts file extensions from MIME type strings containing media parameters
  5. mime.define allows registering and overriding custom MIME type and extension mappings
  6. new Mime creates an isolated MIME registry with custom type definitions

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous