CodeSampleX

Sample

range-parser 1.3.0

Verified sample for npm range-parser 1.3.0. The contract ran on node 22 · linux alpine/x64 · docker and passed: parseRange(size, str) parses single byte…

sha256:9c2b35d0b230f67252f5da82f536bf8f472e2b46a0c7f0b5d41f69701e26b7e2

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 linux 24 · ubuntu · glibc 2.39 x64 npm

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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/range-parser@1.3.0
Packages
Created
2026-08-20T13:59:10Z

Contract

  1. parseRange(size, str) parses single byte range and sets type property to 'bytes'
  2. parseRange(size, str) parses multiple non-overlapping ranges
  3. parseRange(size, str) parses suffix range relative to total size
  4. parseRange(size, str) parses open-ended range to end of size
  5. parseRange(size, str) caps range ending at total size minus one
  6. parseRange(size, str, { combine: true }) combines overlapping and adjacent ranges
  7. parseRange(size, str) returns -1 for unsatisfiable ranges
  8. parseRange(size, str) returns -2 for invalid or malformed range strings

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous