Proof of Work - An interview with – Adam Back
summary
History of Hashcash as a proof‑of‑work postage stamp is explained with exact parameters: stamps took minutes then with ~20 leading zero bits and modern Bitcoin mining targets ~72 leading zero bits, exponential cost. A Lotus Notes backdoor is located by interrupting encryption to capture an X.509 public key. Demonstrations include a working satellite node that receives blocks for about $100 of hardware and Elements/ Liquid sidechain integration with a Green wallet. Hashcash stamps Bitcoin satellite Elements / Liquid
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chapters (17)
- 0:00Proof of Work interview intro
- 1:05Adam Back's first computer
- 6:26Reverse engineering Lotus Notes
- 10:45From reverse engineering to studies
- 13:55Hashcash origins and challenges
- 20:45Pre-Bitcoin cash attempts
- 24:12Bitcoin's consensus and inflation
- 26:59Bitcoin's pragmatic design
- 28:26Founding Blockstream
- 30:31Blockstream's Liquid sidechain
- 31:57Bitcoin satellite demo
- 35:46Bitcoin satellite benefits
- 39:15Bitcoin's value and adoption
- 41:20Lightning Network scalability
- 43:31Bitcoin in emerging markets
- 46:48Cyprus bail-in and Bitcoin
- 48:55Bitcoin as wealth protection
