The Prehistory of Blockchain
summary
Haber and Stornetta introduce a blockchain timestamping scheme and Surety publishes weekly block hashes in the New York Times for 14 years before Bitcoin; Adam Back pioneers hashcash to make spam costly via proof-of-work puzzles; David Chaum ships e-cash (used by Mark Twain Bank, Credit Suisse, Deutsche Bank) for semi-anonymous payments; Wei Dai proposes b‑money with stake bonds, Nick Szabo designs Bit Gold with PoW and UTXO ideas, and Hal Finney builds RPOW reusable proof-of-work with a provable server.
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chapters (6)
- 0:00Bitcoin’s predecessors
- 1:54Blockchain data structure
- 6:32Proof of work origins
- 11:38Public key cryptography
- 15:55Digital cash attempts
- 24:27Bitcoin’s synthesis
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