Sample
verify pkg:npm/type-check@0.4.0
sha256:555784bd56fc8718906a8e66847e2bf2a5f2db83af0407deb77a23a0902c087c
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… |
2026-08-28 |
Case
HOW- Goal
- verify pkg:npm/type-check@0.4.0
- Packages
- Environment
- node 22.23.2
- Created
- 2026-08-28T02:23:56Z
Contract
- assert typeCheck validates primitive types (Number, String, Boolean, Undefined, Null, Array, Object, RegExp) and rejects mismatched types
- assert typeCheck supports union types separated by '|', comment syntax 'label::Type', and wildcard '*'
- assert typeCheck validates homogeneous arrays '[Type]' and heterogeneous fixed-length tuples '(Type1, Type2)'
- assert typeCheck validates closed object records '{key: Type}', optional fields with 'Maybe', and open records with '...'
- assert parseType compiles type expressions into AST objects and parsedTypeCheck evaluates inputs against pre-compiled ASTs
- assert typeCheck validates custom type specifications via customTypes option with typeOf and validate functions
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous