CodeSampleX

Sample

verify @jridgewell/trace-mapping.sourceContentFor in pkg:npm/%40jridgewell/trace-mapping@0.3.31

sha256:216fec617f1f2888b99b8085d43febeee3a7a8dc43be50394199ae5632fb0f20

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…
2026-08-27

Case

HOW
Goal
verify @jridgewell/trace-mapping.sourceContentFor in pkg:npm/%40jridgewell/trace-mapping@0.3.31
Packages
Symbols
  • @jridgewell/trace-mapping.sourceContentFor
Environment
node 22.23.2
Created
2026-08-27T11:50:49Z

Contract

  1. sourceContentFor returns the embedded source content for a source file present in sourcesContent
  2. sourceContentFor returns null for a source file without content or when sourcesContent is not provided
  3. sourceContentFor returns null for an unknown or unmapped source file path
  4. sourceContentFor resolves sources correctly when sourceRoot is configured in the source map

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous