What is Antigravity Pulse?
A production-grade cryptographic human verification system that analyzes keystroke patterns using Durable Objects and generates verifiable C2PA certificates. Prove you're human without collecting user data.
How It Works
1. Keystroke Recording
Our SDK captures inter-keystroke intervals (IKI) — the timing between your keypresses. No content is recorded, only the rhythm.
2. Edge Analysis
Telemetry is processed instantly on Cloudflare Durable Objects with sub-millisecond precision. Paste injection is detected instantly.
3. Cryptographic Signing
Once finalized, your typing pattern is digested into a SHA-256 hash and signed with HMAC using edge secrets.
4. C2PA Certificate
Receive a verifiable Content Authenticity Initiative (C2PA) manifest proving your humanness with a timestamp and issuer signature.
Key Features
Zero-Text Privacy
Your actual content never leaves the browser. Only inter-keystroke latencies are measured — completely anonymized.
Paste Injection Detection
Large content changes with minimal latency trigger instant flagging. Bot behavior is instantly identified.
Real-Time Visualization
See your unique keystroke pattern visualized as an animated bar graph reflecting your rhythm in real-time.
Embeddable Fingerprint Badge
Generate a visual verification badge that can be embedded on any website, blog, or forum post.
Edge-Optimized
Powered by Cloudflare Durable Objects for globally distributed, isolated state machines with instant analysis.
Cryptographically Verifiable
Every certificate is signed and can be independently verified using SHA-256 and HMAC-based signatures.