CodeSampleX

Sample

Trace original and generated positions using TraceMap and originalPositionFor

sha256:9f5113845aad7fcb93550da642cb001dff2204128b5703621807d7d98755e4dd

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…
2026-08-24

Case

HOW
Goal
Trace original and generated positions using TraceMap and originalPositionFor
Packages
Symbols
  • TraceMap
  • originalPositionFor
  • generatedPositionFor
  • sourceContentFor
Environment
node 22.23.2
Created
2026-08-24T20:21:57Z

Contract

  1. TraceMap parses a standard v3 source map and provides access to metadata fields
  2. originalPositionFor maps generated 1-based line and 0-based column to original source position and identifier name
  3. generatedPositionFor maps original source position back to generated 1-based line and 0-based column
  4. allGeneratedPositionsFor returns all generated locations corresponding to a source position
  5. sourceContentFor retrieves the embedded source content for a source file
  6. decodedMap and encodedMap convert TraceMap back to valid decoded and encoded source map objects
  7. eachMapping iterates over all mappings in generated order

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