CodeSampleX

Sample

verify pkg:npm/update-browserslist-db@1.2.3

sha256:a3af0ae448773fc1182e4deb5022a9884184d03d7f38c0307a37e1d82f9373b7

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

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

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
2026-08-21

Case

HOW
Goal
verify pkg:npm/update-browserslist-db@1.2.3
Packages
Created
2026-08-21T07:23:48Z

Contract

  1. update-browserslist-db exports a callable update function that accepts a custom print handler
  2. update-browserslist-db detectLockfile throws BrowserslistUpdateError with browserslist flag when executed outside a project directory
  3. update-browserslist-db detectLockfile throws BrowserslistUpdateError when package.json exists without any supported lockfile

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous