Bitcoin cannot be mentioned without Hal Finney. One of the earliest Bitcoin pioneers, he was the first person to receive the world’s first Bitcoin transaction and he has often times been identified as Satoshi Nakamoto. In the world of cryptography, Finney is a key figure and a grandmaster. He always had a keen interest in cryptography payment schemes, and when Satoshi Nakamoto brought Bitcoin to the limelight, he felt positive and convinced, while many cryptographers were sceptical about the cryptocurrency. Hal Finney and Phil Zimmermann worked together at PGP (Pretty Good Privacy) Corporation which Zimmermann started.
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