AI Content Attestation
Prove your AI companion helped create your content
What is attest.ink?
A decentralized protocol for creating cryptographic proof that AI helped create your content. Everything runs directly in your browser using mathematical signatures to ensure authenticity. Your content never leaves your device, and verification happens independently without relying on any central authority or database.
Why it's decentralized: Attestations are self-contained cryptographic proofs that can be verified by anyone, anywhere, without connecting to our servers. The protocol is open source, works offline, and doesn't require blockchain transactions - making it truly peer-to-peer and censorship-resistant.
How It Works
1. Select Your Model
Choose from a wide range of models including:
- Human (No AI) - For purely human-created content
- GPT-4 Series (OpenAI)
- Claude Opus 4 (Anthropic)
- Gemini Pro (Google)
- Llama 3 (Meta)
- And many more...
2. Create Your Attestation
Input your content and generate a cryptographic attestation:
{
"content_hash": "sha256:b6a5c8d9...",
"model": "gpt-4",
"timestamp": "2025-01-15T12:00:00Z"
}
3. Add Digital Signature
Sign with your Ethereum wallet, create a local signature, or use HMAC-SHA256 for server-side applications.
4. Display Verification Badge
Add verification badges to your content. Anyone can click to verify authenticity.
What badges look like
Supporting 100+ AI models across all major providers · View all badge styles →
Special Badge Styles
Key Features
- No Servers: Fully client-side operation
- Decentralized: No central authority
- Privacy-First: Content never leaves your device
- Universal: Works on any platform
- Open Source: Free and transparent forever
Why Use attest.ink?
In the age of AI, transparency builds trust. Show your audience when AI helped create content, and join the movement for honest AI disclosure.
No blockchain required. No centralized servers. Just cryptographic proof that can be independently verified by anyone.