Waterloo Ethereum Clubhttp://www.meetup.com/Ethereum-Waterloo-Club/

November 2015

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Recap

Further links: https://www.reddit.com/r/ethereum/comments/3vxvlx/starter_guide_almost_all_the_links_youll_need_to/

Where are we in the Ethereum road map?

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Ether Sale

Frontier

Homestead

Metropolis

Serenity

We are HereDecember 2015

July 2015

July 2014

What has been accomplished?

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Releases■ 3 Client Implementations

○ Geth: Go Ethereum Client○ Web3: C++ Ethereum Client○ Pyeth: Python Ethereum Client

■ Web3 Javscript Library■ Ether Wallet

POCs■ Mist Browser■ Whisper Protocol■ Swarm Protocol

Next steps■ Private Chains■ Scalability■ Proof of Stake■ Zero Knowledge Proof

*Simplifications are made to explain the concepts behind ethereum. For detailed technical specifications, please refer to the ethereum website.

*Simplifications are made to explain the concepts behind ethereum. For detailed technical specifications, please refer to the ethereum website.

Scalability via Sharding

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Current State:■ Every node processes every transaction■ Every node stores all of the state

Future State■ Sharding the blockchain■ State split into shards■ Accounts in one shard can only send transactions or call accounts in the same shard

Async Transactions to enable calling contracts on different shards to■ Get information■ Send an action

*Simplifications are made to explain the concepts behind ethereum. For detailed technical specifications, please refer to the ethereum website.

The New Proof of Stake Consensus Protocol (Casper)

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Design Goals:■ Worst-case economic analysis■ Assumes rational nodes■ Use of disincentives ■ Light client friendly■ Low-latency

Security Deposit-Based Proof-of-Stake■ The disincentive is the loss of the security deposit■ Clients need to be aware who are the current validators

Case Study: Building a Two Party Escrow Service

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Things to cover:1. Mechanics2. User Interface Design3. Implications

Case Study: Building a Two Party Escrow Service

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*Source: https://twitter.com/avsa

CURRENT WORLD ETHEREUM ENABLED WORLD

PROBLEMS:● Set-up and facilitation complications● What if escrow is a scammer?● What if buyer is a scammer?

Case Study: Building a Two Party Escrow Service

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*Source: https://twitter.com/avsa

Case Study: Building a Two Party Escrow Service

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*Source: https://twitter.com/avsa

THANK YOU

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Prepared by: Terek Judi & Jovan Sardinhaterek.judi@gmail.com | jovan.sardinha@gmail.com *Simplifications are made to explain the concepts behind ethereum. For detailed technical specifications, please refer to the ethereum website.