CodeSampleX

Sample

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

sha256:010d0b3ff7dca53f21ad8fb1adbe7db12268c8b4a867a8efc3cb62653df27201

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.eachMapping in pkg:npm/%40jridgewell/trace-mapping@0.3.31
Packages
Symbols
  • @jridgewell/trace-mapping.eachMapping
Environment
node 22.23.2
Created
2026-08-27T11:41:50Z

Contract

  1. eachMapping iterates across all mapped segments in generated line and column order
  2. eachMapping resolves 1-based original line, 0-based original column, source path, and identifier name for 5-element segments
  3. eachMapping provides null source, original positions, and name for 1-element unmapped segments
  4. eachMapping handles decoded map objects and empty source maps gracefully
  5. iterateMappings and collectMappings helper functions accurately proxy and aggregate eachMapping iterations

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous