CodeSampleX

Sample

verify pkg:npm/%40jridgewell/gen-mapping@0.3.13

sha256:68d72d35fab28d6e8939bc2e71688369f35ca601ce45691af4ec70e4939bbe16

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
verify pkg:npm/%40jridgewell/gen-mapping@0.3.13
Packages
Environment
node 22.23.2
Created
2026-08-24T20:26:01Z

Contract

  1. GenMapping constructor initializes a source map instance with optional file and sourceRoot
  2. addMapping associates 1-based generated positions with original source positions and optional symbol names
  3. addSegment associates 0-based generated coordinates directly with original source coordinates
  4. maybeAddMapping skips redundant consecutive mappings with identical original positions
  5. setSourceContent embeds original file content into sourcesContent
  6. setIgnore marks source file indices in ignoreList for debugger filtering
  7. toDecodedMap exports source map with decoded segment coordinate arrays
  8. toEncodedMap exports source map with VLQ encoded mappings string
  9. allMappings returns array of high-level mapping objects for all recorded segments
  10. fromMap initializes a new GenMapping instance pre-populated from an existing source map

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous