CodeSampleX

Sample

verify rrweb-cssom.CSSMediaRule in pkg:npm/rrweb-cssom@0.7.1

sha256:4abdf8c36692a532cb260887e47e24e5df5c6cbf10ee9fe6c26d79fea4fcc5f0

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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-27

Case

HOW
Goal
verify rrweb-cssom.CSSMediaRule in pkg:npm/rrweb-cssom@0.7.1
Packages
Symbols
  • rrweb-cssom.CSSMediaRule
Created
2026-08-27T22:15:38Z

Contract

  1. parse extracts CSSMediaRule with MEDIA_RULE type (4), conditionText, and MediaList
  2. CSSMediaRule supports media list manipulation via appendMedium and deleteMedium
  3. CSSMediaRule supports dynamic child rule manipulation via insertRule and deleteRule
  4. CSSMediaRule serializes nested rules to cssText format

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous