Sample
verify react-dom.createRoot in pkg:npm/react-dom@19.2.8
sha256:298a4020a3f0ef99cbdcf655af26d81a2104bd3def2d92bebc77988ef108df1b
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@19.2.8
- Packages
- Symbols
-
- react-dom.createRoot
- Environment
- node 22.23.2
- Created
- 2026-08-26T08:18:06Z
Contract
- createRoot is exported as a function from react-dom/client
- createRoot(null) and createRoot({}) throw Error 'Target container is not a DOM element.'
- createRoot(container) returns a root object with render and unmount methods
- root.render(element) renders React elements into the target DOM container
- root.unmount() unmounts the rendered tree and clears the container contents
- createRoot accepts optional configuration including identifierPrefix for React useId hooks
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.mjs
- test/contract.mjs
Origin Seeder
anonymous