[ Seal ]
Stamp it, sign it.
Paste a prompt, a model answer, a diff, a contract, anything at all. This page hashes it on your machine and asks a key to sign the digest. What you get back is one line of text that anyone can check, and the thing you pasted stays where you pasted it.
Fingerprint0 bytes
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Wallet
No wallet extension has answered yet.
Waiting for a wallet
Sign it
Connect a wallet above to sign with your own key.
or
The notary holds a key on the server and signs the digest you computed. It receives the digest and never the content, which is what makes its signature worth checking: you did not make it.
signer 0x4eE49287668b4961b46d6D24E35C46FDE45bea08