Sample
verify react.useState in pkg:npm/react@19.2.8
sha256:4b73817db7794e7cfea5ea8d7a54e6c92dd4881f56039e66c600f3f7febf49d0
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… |
2026-08-27 |
Case
HOW- Goal
- verify react.useState in pkg:npm/react@19.2.8
- Packages
- Symbols
-
- react.useState
- Created
- 2026-08-27T15:44:16Z
Contract
- assert useState outside a dispatcher throws TypeError due to null ReactSharedInternals dispatcher
- assert useState initializes state with primitive value and functional initializer under dispatcher
- assert setState updater updates state value on subsequent renders
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous