The World’s Online Notary
Proofstack helps you to obtain effective/legal evidences through
Qualified Authorities (Germany, Estonia, Hungary, Turkey) and Blockchain Protocols
(Bitcoin, Ethereum, Litecoin, EOS, NEO, Stellar).

The World’s First and Only
Proofstack is the world’s first and only startup that uses both Qualified Authorities and Blockchain Protocols (BTC, ETH, LTC, EOS, NEO, XLM) in a single platform to create global and local legal proofs via Android, iOS and Web applications.
Techcrunch
Proofstack (formerly Copyrobo) was elected as one of the 3 most promising blockchain startup.
See more at Techcrunch
Smart Dubai Office
Proofstack got special recognition by Smart Dubai Office and 1776.
See more at Smart Dubai