Sample
react-is 18.3.1: isPortal
Verified sample for npm react-is 18.3.1: isPortal. The contract ran on node 22 · linux alpine/x64 · docker and passed: isPortal identifies React portal…
sha256:4b95dcafd96f5b68601e3543046be2acd58355b848208302d7c93ffe2aa8977e
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… |
2026-08-30 |
Case
HOW- Goal
- verify react-is.isPortal in pkg:npm/react-is@18.3.1
- Packages
- Symbols
-
- react-is.isPortal
- Created
- 2026-08-30T09:59:25Z
Contract
- isPortal identifies React portal objects with react.portal symbol type
- isPortal returns false for non-portal elements, plain objects, null, undefined, and primitives
- Portal symbol matches typeOf on valid React portal objects
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous