Sample
verify pkg:npm/react@19.0.0 useActionState and useOptimistic
sha256:26876fb6c3deb07e4300554a0e48cc02ed6988525dcfca4dfa707d28f91b4007
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… |
2026-08-27 |
Case
HOW- Goal
- verify pkg:npm/react@19.0.0 useActionState and useOptimistic
- Packages
- Symbols
-
- useActionState
- useOptimistic
- Environment
- node 22.23.2
- Created
- 2026-08-27T16:50:30Z
Contract
- React 19.0.0 exports useActionState, useOptimistic, use, useTransition, startTransition, act, Fragment, and Suspense.
- Invoking useActionState, useOptimistic, use, or useTransition outside a React hook dispatcher throws TypeError when dispatcher is null.
- startTransition executes callbacks synchronously while scoping transition context and returns undefined for asynchronous transition callbacks.
- use(Context) reads context values from context instances and supports conditional execution inside branching logic.
- use(Promise) unwraps fulfilled promises synchronously, suspends on pending promises by throwing the promise, and throws rejection reasons on rejected promises.
- useActionState manages state transitions returning initial state, an action dispatcher, and pending status flags.
- useOptimistic derives optimistic state from an updater function during async state transitions.
Files
- NOTES.md
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous