CodeSampleX

Sample

setprototypeof 1.2.0

Verified sample for npm setprototypeof 1.2.0. The contract ran on node 22 · linux alpine/x64 · docker and passed: setPrototypeOf(obj, proto) mutates obj to…

sha256:b35e3c6a5a4c39aa791d232816fc68ef6a459d2cdccad865852ab55d3047ccda

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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/setprototypeof@1.2.0
Packages
Environment
node 22.23.2
Created
2026-08-20T13:23:00Z

Contract

  1. setPrototypeOf(obj, proto) mutates obj to inherit from proto and returns obj
  2. inherited methods and properties from proto become accessible on obj
  3. Object.getPrototypeOf(obj) returns proto after setPrototypeOf
  4. setPrototypeOf(obj, null) sets object prototype to null with no Object.prototype inheritance

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous