BLOCKCHAIN NOTARY

Prove ownership on the Bitcoin Blockchain...

Get Started

Drag a file into the browser window. Your file will not be uploaded to our server. Learn more.

Document Privacy

Your file never leaves your computer. Rather, your web browser computes the cryptographic hash of your file, and that is the only data sent to us. We know nothing about the contents of your document.

How it works

1. Add your file by dragging it into the browser or using the file selector above.
2. Follow the prompt to send bitcoin and fund your blockchain anchor.
3. See your proof on the blockchain by checking the transaction in a block explorer.

Try Blockchain Notary here