goodrock
El Capitan granite rock face

Proof of creation
for the AI age.

One click to timestamp, certify, and prove ownership of prompts, images, and workflows—then license or sell your rights to anyone, anywhere.

Get the Chrome Extension How it works
Asset Certificate Verified

Uploading asset...

prompt_v2_final.json

Fingerprinting

a3f7 c2d8...e9b1

Certified

Timestamped on Bitcoin

Block 854,291 confirmed
Fingerprint sha256:a3f7...e9b1

Use Cases

Built for creators.

Whatever you create with AI, you deserve proof of ownership. Here's how different professionals use the registry.

Prompt Engineers

Protect your carefully crafted prompts. Prove authorship of workflows that took hours to perfect. License them to teams or clients with cryptographic certainty.

prompt_v2_final.json
Verified on nostr:note1a2b...
Version Control

Digital Artists

Register every image, style reference, and iteration. Build a verifiable portfolio.

Style Protection

Writers & Researchers

Document AI-assisted research provenance. Meet transparency requirements.

Verified
Source Tracking

Legal & IP Teams

Create an independent, verifiable audit trail for digital assets. Evidence that holds up when disputes arise. Court-admissible cryptographic proof.

Legal Certificate
EU AI Act Compliant
Cryptographic Signature Valid
Timestamp Anchored to Bitcoin
Nostr Registry Confirmed
Legal Grade
Regulation Ready

AI regulation is coming.
Be ready without the headache.

Starting in 2026, the EU AI Act will require businesses and professional creators to disclose and prove the origin of AI-generated content.

Watermarks get stripped. Metadata gets lost. Platforms change their rules. Our protocol gives you something stronger: a cryptographically signed, independently verifiable record of what you made, when you made it, and how much of it was human.

Recognized by regulators as a valid transparency technique

Portable proof that travels with your work outside any single platform

Independent infrastructure — no company can change the rules or disappear

2024

Create with AI

Generate assets, prompts, workflows

2025

Register & Timestamp

Cryptographic proof on Nostr

2026

EU AI Act in Effect

Compliance-ready with proof

Trust, but verify

Every certificate can be independently verified by anyone. Here's what a proof looks like.

Asset Certificate
Verified
Asset Fingerprint
sha256:a3f7c2d8e9b1a4f5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9
Signature Valid

Signed by npub1a2b3c...d4e5f6

Timestamp Verified

Anchored to Bitcoin block 854,291

Registry event
note1q2w3e4r5t6y7u8i9o0p...

This certificate is permanently stored on Nostr and can be verified independently.

How it works

Three steps. No blockchain fees. No complexity.

01

Upload

Upload your asset to a Blossom server. Blossom fingerprints the file with its SHA-256 hash. The hash becomes its permanent, universal address.

02

Sign

Sign a registry event on Nostr. This declares what the asset is, who created it, and when. Ownership is cryptographic and portable.

03

Timestamp

Anchor the event hash into the Bitcoin blockchain with OpenTimestamps. This gives you a tamper-proof certificate of existence.

Questions? Answered.

Everything you need to know about the AI Asset Registry.

Is this blockchain?
Not in the traditional sense. We use OpenTimestamps to anchor proof hashes to the Bitcoin blockchain for timestamp verification, but there are no tokens, no gas fees, and no smart contracts. The registry itself runs on Nostr, a decentralized protocol that works more like email or RSS than a blockchain.
Who can see my assets?
You choose. By default, your registry entry is public—showing that an asset exists and who created it. But you can also encrypt the metadata using NIP-44, so only you (or people you authorize) can read the details. Either way, the proof of ownership remains verifiable.
What does it cost?
Nothing for basic registration. The protocol is open and permissionless. Optional paid services (like premium Blossom hosting for large files) may exist, but the core registry and timestamping are free.
How is this different from NFTs?
NFTs are tokens on a blockchain that represent ownership—often of digital art. But they're complex, expensive, and speculative. Our protocol is simpler: we create a cryptographic certificate that proves you created something at a specific time. No tokens, no trading, just portable proof.
Can I transfer or sell my registered assets?
Yes. Because your ownership is cryptographically signed and portable, you can grant, license, or transfer rights directly to another person or platform. Think of it like a land registry: the registry records who owns the land; the owner decides who gets the keys.
What happens if the service goes down?
The protocol keeps working. Your registry entries live on Nostr, a decentralized network with thousands of independent relays. Your assets can be stored on any Blossom-compatible server. Even if this specific service disappeared, your proofs would remain valid and verifiable.

Ready to prove what you create?

Get the Chrome Extension and start registering your AI assets in one click. Works with ChatGPT, Midjourney, Claude, and more.

Get the Chrome Extension Read the Protocol
Free to use No sign-up required Open source