CodeSampleX

Sample

react-is 18.3.1: isContextProvider

Verified sample for npm react-is 18.3.1: isContextProvider. The contract ran on node 22 · linux alpine/x64 · docker and passed: isContextProvider is exported…

sha256:e09421869ff6fa34c08d0671adca923650ee1d23e2e4eb7bee2c27f95bdac62d

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…		 2026-08-30

Case

HOW
Goal
verify react-is.isContextProvider in pkg:npm/react-is@18.3.1
Packages
Symbols
  • react-is.isContextProvider
Created
2026-08-30T09:56:57Z

Contract

  1. isContextProvider is exported as a function from react-is
  2. isContextProvider returns true for React Context Provider element objects
  3. isContextProvider returns false for React Context Consumer element objects
  4. isContextProvider returns false for standard DOM element objects and React Fragment elements
  5. isContextProvider returns false for non-element objects, primitives, null, and undefined
  6. typeOf correctly identifies ContextProvider elements as matching the ContextProvider symbol

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous