Blockchain – a paradigm shift for business
summary
Argues blockchain is a foundational layer like TCP/IP, not just crypto, and breaks it into protocol, network and application layers while comparing consensus limits — proof of work ≈ 7 tx/s versus Visa 50–70k — and shows alternatives like proof of importance and NEM supernodes reaching hundreds to thousands TPS. Describes building Bobcoin on Ethereum to reward timesheets, thought leadership, reuse cups and wellbeing (deployed internally and demoed to Singapore), highlights identity use for 1.1 billion unregistered people and tools like Sovrin, ID2020 and CryptoZombies.
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chapters (14)
- 0:00Start
- 6:4601 What is a distributed ledger? 02 What is blockchain 03 Blockchain tech stack 04 Key components of blockchain 05 Consensus 06 Current applications of blockchain 07 Blockchain strategy framework 08 Coding DApps
- 11:18CRYPTOGRAPHIC KEYS & SIGNATURES
- 11:44SPECIAL TYPE OF D.L.
- 12:03ORGANISED INTO BLOCKS
- 12:32CRYPTOGRAPHIC HASH FUNCTION
- 13:21INCENTIVE MECHANISM
- 19:06HOW NODES COME TO CONSENSUS
- 19:47PROVIDES IMMUTABILITY
- 20:17SERVES THE USER NEEDS
- 20:27CONSUMERS & UNDERLYING COMPLEXITY
- 27:13Practical Byzantine Fault Tolerance (PBFT) algorithm
- 27:49POW: SOLVE BLOCK HASHING PROBLEM
- 53:05BLOCKCHAINS BENEFITS
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