blockchain_slides

How do they agree?

Mining

The Blockchain

• Distributed
• Time-stamped
• Public & Verifiable
• Persistent

What's the fuzz about?

• Contracts
• Shares & dividend payments
• Intellectual property
• Voting
• Distributed web apps
• Smart contracts
• ...

Demo

Proof of Work

• First transaction: Block reward
• Add a random number
• Proof of Work: HASH(Block) < Difficulty

Proof of Stake

• First transaction: Block reward
• Add timestamp in seconds
• Proof of Stake: HASH(Block) * Stake > Difficulty

My coins

• Bitcoin: The original
• Peercoin: PoS
• Ethereum: Programmable Blockchain

In depth topics

• Pegged side-chains
• Distributed Autonomous Organisations (DAO)
• Distributed web apps (Dapps)
• M-of-N oracles
• Multi-step contracts
• Blockchain as a Service

References

• http://www.ybrikman.com/writing/2014/04/24/bitcoin-by-analogy/