Hal Finney

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  • Profession: Programmer and Cryptographer Activist
  • Finney was a pioneer in bitcoin. He created the first reusable proof-of-work system before bitcoin existed and he also took part in the first ever Bitcoin transaction, receiving bitcoins from Satoshi Nakamoto. He programmed until he died in 2014 and asked to be cryopreserved. His last project, an experimental software called bcflick, which aimed to improve bitcoin wallet security through trusted computing.
  • Cypherpunk