CodeSampleX

Sample

verify bufferEqualConstantTime in pkg:npm/buffer-equal-constant-time@1.0.1

sha256:dd9c775176ce2232c346a5f020231a2b19e605ee1bcd1ac2ccefc8471c84107d

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…		 2026-08-26

Case

HOW
Goal
verify bufferEqualConstantTime in pkg:npm/buffer-equal-constant-time@1.0.1
Packages
Symbols
  • bufferEqualConstantTime
Environment
node 22.23.2
Created
2026-08-26T04:31:15Z

Contract

  1. bufferEqualConstantTime returns true for equal buffers of same length and identical content
  2. bufferEqualConstantTime returns false for buffers with different content but same length
  3. bufferEqualConstantTime returns false for buffers of different lengths
  4. bufferEqualConstantTime returns false if first argument is not a Buffer
  5. bufferEqualConstantTime returns false if second argument is not a Buffer
  6. bufferEqualConstantTime.install extends Buffer prototype with equal method and restore reverts it

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