Blockchain Prehistory .
Most of blockchain terminologies are not new:
1953 Hash Function . Hans Peter Luhn, IBM
1969 Peer-to-peer . Network . RFC1, APRA network
1976 Public Key Signature . Whifield Diffie and MartinHellman
1979 Merkle Trees . Ralph Merkle
1982 . Byzantine generals problem . Lamport, Shostak, Pease
1984~1990 State machine replication . Leslie Lamport, Fred Schneider
1987 Gossip protocols . Alan Demers
1993 ~ 1999 Proof of Work . Dwork, Naor; Jakobsson, Juels
1994 . Smart Contracts . Nick Szabo
1999 . Byzantine fault tolerance . Miguel Castro, Barbara Liskov
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