 Πόλιο χρησιμοποιείται μέλλον της ΕΕΛΑΥΕΝ και ο Bitcoin's blockchain data structure. So in an intuitive level, any decentralized cryptocurrency should solve this problem because the users of a cryptocurrency should somehow agree on what transactions have been made. And the concessions problem is just that. So the statement of the problem is as follows, you have a bunch of people, ίδιοι έχουν ένα πραγματικό επίπεδο και μετά να κοιμηθούν ότι θέλουν να συγγραφήσουν σε κάποιον επίπεδο. Αλλά among them, some of the parties could be dishonest and they are trying to preclude this agreement. Λοιπόν, υπήρχε αυτή την αδύναση ότι οι κρυπτοκαρρνιστικές κρυπτοκαρρνιστικές τελευταίσουν αυτό το πρόβλημα και το αδύνατο μας ήταν να φορμαλήσει αυτό, να δημιουργήσει ένα φορματικό επίπεδο, ότι η Bitcoin, για παράδειγμα, δημιουργεί τα αδύναση των κρυπτοκαρρνιστικών. Είμαι part of a research group who are working on the design and implementation of blockchain-based public key infrastructure. Ο επίπεδος στην αδύναση τηςados cuisine are playing a central role in the communications through the internet for example in internet banking. We think it would be very interesting to provide the decentralized approach to this problem. Επίσης, we have a novel approach based on smart contract infrastructure to deliver a solution to the PKI problem. Είμαι σημαντικός από το Ευρωπαϊκό Πρόεδρο, called MyHealthMyData, in which the patient has the ability to have total control over the data with the use of blockchain and smart contracts. Οι πάντες έχουν αυτοί οι δικαίες να είναι αυτοί, or individually which kind of data the patient will share and want to share. So this process gives trust to the end user that his data or his data actually are encrypted and the privacy is kept. Είμαι σημαντικός από το Ευρωπαϊκό Πρόεδρο and proving and giving formal arguments, mathematical arguments about properties of algorithms and protocols that are being actually used in real life and bridging this way the practice with theory is something that needs more work nowadays and especially with protocols such as cryptocurrencies that are used by many people and have important applications, it is important to have some theoretical work to back up the claims about their security. Είχομαι σημαντικός πρόεδρο, but I think that the blockchain technology is still in its infancy and in the future the blockchain lab in Athens will have to expand and have more people working to fulfill the needs of this emerging technology. Είχομαι σημαντικός πρόεδρο, because both the users and the researchers who have the ability to have access to this huge amount of data without compromising security and privacy. Είχομαι σημαντικός πρόεδρο, but there are a lot of interesting things that are going on in this area. Είχομαι σημαντικός πρόεδρο, but there is a very active community of researchers and engineers working on this field. Είχομαι σημαντικός πρόεδρο, but I definitely wanted to learn more and be part of it in the future. Είχομαι σημαντικός πρόεδρο, but I think that blockchain technologies in the near future will have a great social impact worldwide and I also think that Athens can only be part of it.