Sample
react 18.3.1: Identify what breaks at runtime (hooks, context) vs passes (pure JSX) when duplicate React instances exist from peer dependency resolution in Node
Verified sample for npm react 18.3.1: Identify what breaks at runtime (hooks, context) vs passes (pure JSX) when duplicate React instances exist from peer…
sha256:059011629c7734f8ac38604635b6d097a2b80c286715c0bbcc0db022a73afa54
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
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-15 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Identify what breaks at runtime (hooks, context) vs passes (pure JSX) when duplicate React instances exist from peer dependency resolution in Node
- Packages
- Symbols
-
- react.createElement
- react.useState
- react.createContext
- react.isValidElement
- react-dom/server.renderToString
- Environment
- node
- Created
- 2026-08-15T17:13:19Z
Contract
- assert duplicate React modules share Symbol.for('react.element') enabling cross-instance element validation and stateless SSR
- assert duplicate React modules maintain isolated ReactSharedInternals causing hook dispatcher to be null during SSR and throwing TypeError on useState
- assert duplicate React createContext instances fail context propagation silently due to referential inequality across copies
- assert unifying peer dependency resolution to a shared module instance restores hook execution and context propagation
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs