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- A mathematical scheme for verifying the authenticity of digital messages or documents.
- 2008, Satoshi Nakamoto, “Bitcoin: A Peer-to-Peer Electronic Cash System”, in (Please provide the book title or journal name):
- We define an electronic coin as a chain of digital signatures. Each owner transfers the coin to the next by digitally signing a hash of the previous transaction and the public key of the next owner and adding these to the end of the coin.