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https://coinstelegram.com/2019/09/02/nick-szabo-the-man-behind-smart-contracts-and-adam-back-inventor-of-proof-of-work-algorithm-will-make-their-first-stage-appearance-in-korea/
Nick Szabo, the Man Behind Smart Contracts, and Adam Back, Inventor of Proof-of-Work Algorithm, Will Make Their First Stage Appearance in Korea