Other notaries prove a document exists. AmiStampAI proves what it means and why it was created. Cryptographic proof of meaning and intention, anchored on Tezos.
Every AmiStampAI seal binds three dimensions that no other notary captures together.
The document exists and has not been altered. SHA-256 hash, ECDSA signature.
What the author declares this document means. Recorded, signed, immutable.
Why it was created. The declared purpose, cryptographically bound to the content.
Traditional notarization vs. AmiStampAI.
| Capability | Traditional | Blockchain-only | AmiStampAI |
|---|---|---|---|
| Proves existence | Yes | Yes | Yes |
| Proves authorship | Yes | No | Yes |
| Certifies meaning | No | No | Yes |
| Certifies intention | No | No | Yes |
| Immutable record | No | Yes | Yes |
| Verifiable by anyone | No | Yes | Yes |
| Under 5 seconds | No | Yes | Yes |
Four steps. No intermediary. Your keys, your stamp.
ECDSA P-256 key pair generated in your browser via Web Crypto API. Private key never leaves your device.
Write your content, its meaning, and your intention. All three are bundled and signed with your private key.
SHA-256 hashes of the document and signature are recorded on Tezos. Immutable, public, verifiable.
Anyone with the public key can verify the signature. Anyone can check the blockchain proof. Zero trust required.
No custom algorithms. No proprietary formats. Standards only.
Industry-standard elliptic curve signatures. Web Crypto API
Cryptographic hashing for document integrity. SubtleCrypto.digest()
Energy-efficient proof-of-stake chain. ghostnet / mainnet
Secure document storage with audit trail. secured_documents
Export and share public keys for external verification. exportKey("jwk")
8-agent platform with concordance verification. Sens Agent + ACR
Every domain where proving intention matters as much as proving existence.
Stamp your research, code, or invention with its declared purpose before publication. Provable prior art with declared intention.
Contracts, NDAs, consent forms — stamp not just the text, but what each party intends by signing.
When AI creates something, stamp the human intention behind the prompt. EU AI Act transparency, built in.
Certify the meaning and purpose of your research before peer review. Timestamp + intention = stronger claim.
Generate a real cryptographic stamp in your browser. Nothing leaves your device.
Start free. Pay only when you need blockchain anchoring or volume.
All cryptographic operations run in your browser. Private keys never leave your device. We store only what you explicitly choose to persist in Firebase, with full deletion rights.
AmiStampAI is a cryptographic tool, not an AI decision system. When used to stamp AI-generated content, it provides the transparency and traceability the Act requires.
ECDSA P-256, SHA-256, JWK, Tezos — all open, auditable, interoperable. No vendor lock-in. Export your keys and verify anywhere.