# KeyWitness — Prove your words are yours

> Prove your words are yours (iPhone/iPad app by MagicSeth Productions.)

- Source: https://appshunter.io/ios/app/keywitness/id6760276383 (this page in markdown: same URL + `.md`)
- Developer: [MagicSeth Productions](https://appshunter.io/developer/321916098)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English
- Released: 2026-04-07
- Data updated: 2026-09-09
- User reviews in markdown: https://appshunter.io/ios/app/keywitness/id6760276383/reviews.md

## What is KeyWitness?

KeyWitness is a keyboard that creates cryptographic proof your text was typed by a human on a real device — not pasted, not generated, not AI.

HOW IT WORKS
Type on the KeyWitness keyboard. It captures your unique keystroke rhythm — timing, position, pressure. Tap Seal, and the keyboard builds a W3C Verifiable Credential signed by your device's Secure Enclave. Share the link. Anyone can verify the proof in their browser — no app needed, no trust required.

WHAT IT PROVES
• Human input — keystroke biometrics that can't be faked
• Real device — Apple App Attest confirms a genuine, unmodified iPhone
• Content integrity — Ed25519 signature locks the text to the moment
• Owner confirmation — optional Face ID proves the phone's owner approved it

PRIVACY BY DESIGN
Your text is encrypted with AES-256-GCM before it ever leaves your device. The encryption key lives in the URL fragment — our server stores an encrypted blob it cannot read. No accounts, no tracking, no analytics.

OPEN STANDARDS
Built on W3C Verifiable Credentials 2.0, did:key, eddsa-jcs-2022, and BitstringStatusList. Any conforming verifier can validate a KeyWitness credential. Fully open source.


## Version history (last 1 release)

### 1.0 — 2026-04-07

No release notes.

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## More apps by MagicSeth Productions

- [UnToxic](https://appshunter.io/ios/app/untoxic/id6796429042)

All apps by MagicSeth Productions: https://appshunter.io/developer/321916098

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*