# Corresponding source and provenance

The corresponding source for Helper Tools 0.1.0 will be published at:

https://git.add-ideas.de/lotobo/helper-tools/src/tag/v0.1.0

Before that tag exists, the `main` branch in the same public repository is the
preferred source under active review. Build the release with Node.js 22 and the
exact dependency graph in `package-lock.json`:

```sh
npm ci
npm run release:artifact
```

The JavaScript/CSS bundles, npm tarball and generated declarations are outputs,
not the preferred form for modification. No runtime code is loaded from a CDN.

## Implementation provenance

- The helpers and interface are original TypeScript and React project code.
- Toolbox manifest, shell and artifact checks use the shared Toolbox SDK 0.2.3.
- Encoding formats, IP notation, JSON, CSV, SI/IEC units, Unicode, ISO 8601,
  checksum and digest algorithms were implemented from public specifications
  and established interoperable formats; no source from an online calculator
  is bundled.
- Cryptographic digests and secure randomness use the browser Web Crypto API.
  The seeded generator is deliberately labelled non-cryptographic.