Block Notarywww.blocknotary.com

Igor BarinovDavid Bentley

Proof of existence

Photos

Videos

Text

Any other electronic file

Old ways of verification

E-mail file to yourself and friends

Get documents notarized

Statement from a 3rd

party

New way of verification

Phone app

3 step process

Submit to Testnet, Bitcoin blockchain, BlockCypher

Other use cases: Proof of presence

Court order, work, etc.

Take a selfie use embedded

GPS, date, time

Confirmation

Push • notification

Block Notary

www.blocknotary.com

Igor BarinovDavid Bentley

How does it work?

Demo: http://www.blocknotary.com/#demo