(database) Crypto secured database, consists of the chain of concatenated blocks Current primary application of blockchain are cryptocurrencies The first public blockhain of Bitcoin was launched at January 3rd, 2009 (the Genesis block creation) BLOCKCHAIN - WHAT IS IT?
the process to find a hash to build next block Blocks connect to each other with hash of the previous one in chain Protocol rules must be fulfilled to place transaction to next block BLOCKS – THE CHAIN LINKS
Distributed storage Default Optional Single Point Of Failure None Possible Data unit Block Table Cancel transaction Until confirmation Yes Modify old data No Yes Integrity control Every node Master server Centralized access control No Yes Centralized data write No Mostly Concurrent transactions Possible No Update periodicity Set (some random) Realtime Backup Priv keys only All data
and manage real-world assets in blockchain Operates over Bitcoin network Coloring and tracking Bitcoin transactions under special rules Prove asset ownership with a message signed with public key Trade the colored coins instead of IPO Pay dividends to colored coins owners
crypto assets trading. Internal XCP cryptocurrency. Ripple Codius: Specialized smart contracts platform. “Oracles”introduced. Contracts can access Internet. Any programming languages. Closed in June 2015. Ethereum: Its own blockchain and cryptocurrency to pay contracts (ETH). Internal C-like language. Contracts can be accessed from Internet. Launched in July 2015.
including: Barclays, Credit Suisse, J.P. Morgan, RBS, RBC, UBS, Bank of America, Citi, HSBC, Morgan Stanley, Deutsche Bank, SEB, SocGen, Mizuho, Nordea etc. NASDAQ exchange – trading platform for Nasdaq Private Market. London and Australian stock exchanges, Visa Blockchain startups investments: Master Card, American Express, IBM, Orange DV