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Version
1.0
Size
4.78 Mb
Updated
1 month ago
Released
07 Apr 2026
Description
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.
Estimates
Availability
Devices
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
iPhone12Mini
iPhone12
iPhone12Pro
iPhone12ProMax
iPadAir4
iPadAir4Cellular
iPadEighthGen
iPadEighthGenCellular
iPadProThirdGen
iPadProThirdGenCellular
iPadProFifthGen
iPadProFifthGenCellular
iPhone13Pro
iPhone13ProMax
iPhone13Mini
iPhone13
iPadMiniSixthGen
iPadMiniSixthGenCellular
iPadNinthGen
iPadNinthGenCellular
iPhoneSEThirdGen
iPadAirFifthGen
iPadAirFifthGenCellular
iPhone14
iPhone14Plus
iPhone14Pro
iPhone14ProMax
iPadTenthGen
iPadTenthGenCellular
iPadPro11FourthGen
iPadPro11FourthGenCellular
iPadProSixthGen
iPadProSixthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | free |
| China | free |
| France | free |
| Germany | free |
| Italy | free |
| Netherlands | free |
| Portugal | free |
| Spain | free |
| UK | free |
| India | free |
| Japan | free |
| Korea, Republic Of | free |
| Poland | free |
| Russia | free |
| Turkey | free |
| USA | free |
| Ukraine | free |
