On December 1, 2015, BITNATION will introduce a public notary service for Estonian e-residents. Via the international BITNATION Public Notary, e-residents, regardless of where they live or do business, will be able to notarize their marriages, birth certificates, business contracts, and much more on the blockchain. The blockchain is a public ledger distributed across hundreds of thousands of computers around the world. The distributed and immutable nature of this public notary makes it more secure than any notary currently offered by traditional nation states.
http://fintechist.com/bitnation-uses-bl ... residency/