Hal Finney's RPOW receives posthumous recognition as Bitcoin precursor
Hal Finney's RPOW system, a 2004 prototype for reusable proof-of-work tokens, gains posthumous recognition as one of Bitcoin's most important precursors.
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Satoshi Nakamoto Institute ↔ Hal Finney, Adam Back
Hal Finney's RPOW system, a 2004 prototype for reusable proof-of-work tokens, gains posthumous recognition as one of Bitcoin's most important precursors.
Adam Back suggests Satoshi look at Ron Rivest's 1996 MicroMint paper on k-way hash collisions. Back admits he has not yet read the draft — a decision he later called 'probably my biggest mistake.'
On his Unenumerated blog, Nick Szabo asks for help implementing bit gold, his 1998 digital currency design. No one responds. Six and a half months later, Satoshi publishes the Bitcoin whitepaper.
In a comment on his Unenumerated blog replying to a reader's criticism of bit gold's tranching design, Nick Szabo asks for help building a demo. No one responds publicly.
Computer scientist, legal scholar, and cryptographer (1964-) who conceived Bit Gold (1998) — the closest conceptual Bitcoin precursor — and coined the term smart contracts.
Cryptographer who invented blind signatures at CRYPTO '82 and founded DigiCash in 1990 to build eCash, an anonymous digital currency two decades before Bitcoin. DigiCash went bankrupt in 1998.