Name: Adam Back Achievements: - computer science PhD in distributed systems from the University of Exeter. - He invented the proof-of-work algorithm that is the foundation of Bitcoin’s security model - The proof-of-work system Hashcash, invented in 1997 is a system to eliminate spam in email - Bitcoin whitepaper Reference number 6 Hashcash - A Denial of Service Counter-Measure - August 1, 2002 - Prefers the programming language C instead of C++ - implemented credlib, a library that implements the credential systems of Stefan Brands and David Chaum. - Joined BitcoinTalk 2013 and Bitcoin miner to late 2013 - Founded Blockstream and ceo october 2016 - Was an applied crypography consultant to startups, worked for startups and bigger companies - Adam Back lost 108.45 Bitcoin on MT gox attack Websites: https://blockstream.com/ https://soundcloud.com/epicenterbitcoin/sets/blocksize-debate