Sample
verify react-dom.createRoot in pkg:npm/react-dom@18.3.1
sha256:efb072f00178ab9de5bcabc74cbc91d7af835b5fb855c2f42792b09eab75bc8c
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 react-dom.createRoot in pkg:npm/react-dom@18.3.1
- Packages
- Symbols
-
- react-dom.createRoot
- Environment
- node 22.23.2
- Created
- 2026-08-26T14:37:19Z
Contract
- assert react-dom/client exports createRoot and hydrateRoot while omitting legacy render and hydrate
- assert react-dom exports a createRoot shim that logs a deprecation warning recommending react-dom/client
- assert createRoot throws an invariant error when container is null or not a valid DOM element
- assert passing a JSX element directly as options to createRoot logs an error advising to call root.render instead
- assert createRoot returns a root instance with render and unmount methods and root.render returns undefined
- assert calling createRoot on an already initialized container emits a duplicate root warning
- assert root.unmount clears internal root state and subsequent render calls throw Cannot update an unmounted root
Files
- NOTES.md
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous