Christian Reitwiessner's guest appearances

Christian Reitwiessner

Epicenter - Learn about Crypto, Blockchain, Ethereum, Bitcoin and Distributed Technologies

Blockchain – Software Engineering Daily

The Smartest Contract

Software Daily

Jarrad Hope

Luis Cuende

Kevin Owocki

Ethan Buchman

Peter Van Valkenburgh

Rune Christensen

Dominic Williams

Erik Voorhees

Jameson Lopp

Vlad Zamfir

Roger Ver

Brian Hoffman

Stephan Tual

Joey Krug

Dan Finlay

OwlTail

Ethereum is a system for running decentralized smart contracts. In the current implementation of Ethereum, every smart contract gets deployed to every full node. Whenever a user wants to call a smart contract, that smart contract gets executed on each full node–across the entire network.  The current model for smart contract execution needs to be made more scalable. In today’s episode, Christian Reitwiessner joins the show to describe Plasma–a system for scaling smart contracts. Christian is a developer who has worked extensively on Solidity, the most popular smart contract programming language in Ethereum. For the last month, we have focused on blockchain related topics, and we will soon be shifting to other subjects. Some of the listeners have not enjoyed the blockchain focus, other people have loved it–for everyone listening, we would love for you to fill out our listener survey at softwareengineeringdaily.com/survey. This will help us decide what other content to focus on. Of course–you can also send me an email at any time, jeff@softwaredaily.com. And join our Slack at softwareengineeringdaily.com/slack. And if you are completely sick of cryptocurrencies, check out our back catalog of episodes at softwaredaily.com, or by downloading our apps, which have all of our episodes including our Greatest Hits, which is a curated set of the most popular shows. The apps will soon have offline downloads and bookmarking. The post Plasma: Smart Contract Scalability with Christian Reitwiessner appeared first on Software Engineering Daily.

Ethereum is a system for running decentralized smart contracts. In the current implementation of Ethereum, every smart contract gets deployed to every full node. Whenever a user wants to call a smart contract, that smart contract gets executed on each full node–across the entire network. The current model for smart contract execution needs to be made more scalable. In today’s episode, Christian Reitwiessner joins the show to describe Plasma–a system for scaling smart contracts. Christian is a developer who has worked extensively on Solidity, the most popular smart contract programming language in Ethereum. For the last month, we have focused on blockchain related topics, and we will soon be shifting to other subjects. Some of the listeners have not enjoyed the blockchain focus, other people have loved it–for everyone listening, we would love for you to fill out our listener survey at <a href="https://softwareengineeringdaily.com/survey" rel="nofollow" target="_blank">softwareengineeringdaily.com/survey</a>. This will help us decide what other content to focus on. Of course–you can also send me an email at any time, <a href="mailto:jeff@softwaredaily.com">jeff@softwaredaily.com</a>. And join our Slack at <a href="http://softwareengineeringdaily.com/slack" rel="nofollow" target="_blank">softwareengineeringdaily.com/slack</a>. And if you are completely sick of cryptocurrencies, check out our back catalog of episodes at <a href="http://softwaredaily.com" rel="nofollow" target="_blank">softwaredaily.com</a>, or by downloading our apps, which have all of our episodes including our Greatest Hits, which is a curated set of the most popular shows. The apps will soon have offline downloads and bookmarking. The post <a href="https://softwareengineeringdaily.com/2018/03/28/plasma-smart-contract-scalability-with-christian-reitwiessner/" rel="nofollow" target="_blank">Plasma: Smart Contract Scalability with Christian Reitwiessner</a> appeared first on <a href="https://softwareengineeringdaily.com" rel="nofollow" target="_blank">Software Engineering Daily</a>.

Plasma: Smart Contract Scalability with Christian Reitwiessner

Jason Teutsch

Bitcoin and Ethereum miners collectively make up what is perhaps the most powerful computational resource in the world. However, mobile phones from the early 2000’s could arguably run more complex operations than these networks combined. While blockchains themselves may never reach the level of computational power of modern computers, they may be leveraged as the underlying verification layer for centralized computing. We’re joined by Jason Teutsch and Christian Reitwiessner. They are the co-authors of a visionary whitepaper which describes Truebit. This protocol would allow complex computations to be executed on off-chain systems while being validated by Ethereum miners. The results of these computations would consequently be available to on-chain smart contracts. Truebit makes clever use of proof systems and game theory to build a protocol where a Task Giver can ask a third party, the Solver, to execute a complex computation in exchange for a reward. Not limited to Solidity, these could be executed in traditional languages such as Go, Python or C++. Verifiers could then challenge the results, incentivising the Solver to be honest or see his reward be stripped away. This incentive structure would guarantee fast and reliable results while eliminating the need for a trusted third party. Topics covered in this episode:  Jason and Christian respective backgrounds in the ecosystem. The core problem being addressed by Truebit Why a scalable decentralized computational resource is desirable How Truebit makes use of proof systems and game theory to enable trusted computations off-chain How the verification game works the incentive structures proposed in Truebit The various use cases for Truebit How Truebit could allow for blockchain interoperability without the need for “blockchain of blockchains” type networks  Episode links:  TrueBit Website TrueBit Subreddit TrueBit: Scalable Computation talk by Christian Reitwiessner at Ethereum Meetup in Berlin Slides for the Scalable Computation talk  This episode is hosted by Meher Roy and Sébastien Couture. Show notes and listening options: epicenter.tv/177

Bitcoin and Ethereum miners collectively make up what is perhaps the most powerful computational resource in the world. However, mobile phones from the early 2000’s could arguably run more complex operations than these networks combined. While blockchains themselves may never reach the level of computational power of modern computers, they may be leveraged as the underlying verification layer for centralized computing. We’re joined by Jason Teutsch and Christian Reitwiessner. They are the co-authors of a visionary whitepaper which describes Truebit. This protocol would allow complex computations to be executed on off-chain systems while being validated by Ethereum miners. The results of these computations would consequently be available to on-chain smart contracts. Truebit makes clever use of proof systems and game theory to build a protocol where a Task Giver can ask a third party, the Solver, to execute a complex computation in exchange for a reward. Not limited to Solidity, these could be executed in traditional languages such as Go, Python or C++. Verifiers could then challenge the results, incentivising the Solver to be honest or see his reward be stripped away. This incentive structure would guarantee fast and reliable results while eliminating the need for a trusted third party. Topics covered in this episode: <ul> <li>Jason and Christian respective backgrounds in the ecosystem.</li> <li>The core problem being addressed by Truebit</li> <li>Why a scalable decentralized computational resource is desirable</li> <li>How Truebit makes use of proof systems and game theory to enable trusted computations off-chain</li> <li>How the verification game works the incentive structures proposed in Truebit</li> <li>The various use cases for Truebit</li> <li>How Truebit could allow for blockchain interoperability without the need for “blockchain of blockchains” type networks</li> </ul> Episode links: <ul> <li><a href="http://truebit.io" rel="nofollow" target="_blank">TrueBit Website</a></li> <li><a href="https://www.reddit.com/r/truebit/" rel="nofollow" target="_blank">TrueBit Subreddit</a></li> <li><a href="https://www.youtube.com/watch?v=sO2tEOBBFOE" rel="nofollow" target="_blank">TrueBit: Scalable Computation talk by Christian Reitwiessner at Ethereum Meetup in Berlin</a></li> <li><a href="https://chriseth.github.io/notes/talks/truebit_meetup_2017-03" rel="nofollow" target="_blank">Slides for the Scalable Computation talk</a></li> </ul> This episode is hosted by Meher Roy and Sébastien Couture. Show notes and listening options: <a href="https://epicenter.tv/177/" rel="nofollow" target="_blank">epicenter.tv/177</a>

Christian Reitwiessner & Jason Teutsch: TrueBit – Scalable Off-Chain Computations for Ethereum