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What is a blockchain and how does it work? Distributed consensus.
Discussion topics : What is blockchain? Discuss origins, core concepts of distributed consensus, and compare/contrast traditional ways of accounting or recording information with the blockchain. Decentralized vs. centralized.


Bitcoin Paper

"Minimum Viable Blockchain" by Ilya Grigorik

Cryptographic basics: Hash functions and Public Key Cryptography. What is a hash function? Why is the blockchain "secure"? Public keys as identities.
Ch. 1 and 2 from Bitcoin and Cryptocurrency Technologies by Arvind Narayanan

Architectural weaknesses of current protocols. Proof of stake and zero-knowledge proofs/protocols.

Scaling, energy utilisation, 51% attacks, growing length of blockchains, incentive misalignments (e.g. in Ripple), hard forks. Problems with Proof-of-work; Alternative mechanisms such as Proof-of-Stake; The ability of zero-knowledge proofs to ensure security and privacy (examples: Zcash and Ethereum).


"On scaling decentralized blockchains"

"Segregated Witness Benefits"

"The Bitcoin Lightning Network: Scalable Off-Chain Instant Payments"


"zkSnarks in a nutshell" by Christian Reitwiessner


Proof of Stake


Introducing Casper "the Friendly Ghost"

Implications: Secure distributed storage and compute.

Use of blockchains and distributed trust to safely store massive amounts of information in peer-peer networks (examples: FileCoin). The IPFS (InterPlanetary File System) hypermedia distribution protocol (addressed by content and identities); bittorrent swarms.


"On Decentralizing Prediction Markets and Order Books"

Interplanetary Filesystem whitepaper

Implications: Healthcare and MedRec/MedChain.

Talk and questions with special guest. How can blockchain help create a more secure and efficient system to store and transfer medical records/research data? Current limitations on medical records.


"A Case Study for Blockchain in Healthcare:"MedRec" prototype for electronic health records and medical research data." by Ekblaw et al.

"Healthcare rallies for blockchains"

Implications: Micropayments and the unbanked.

Micropayment applications to the Energy sector. Current limitations of transaction fees. Segwit/Lightning as a potential two-layer approach to micropayments on top of Bitcoin.


"Blockchain Revolution: How the Technology Behind Bitcoin Is Changing Money, Business, and the World" by Don Tapscott and Alex Tapscott


"How Segwit and Lightning Will Enable Low-Fee Bitcoin Micropayments"

Implications: Sharing personal data for discovery.

Privacy and third-party access to personal data.


"Decentralizing Privacy: Using Blockchain to Protect Personal Data" by Sandy Pentland and Guy Zyskind

Implications: Intelligent currencies.

Cryptocurrencies and the dynamics of the crypto market as a whole. What's next?


 

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