devcon 4 / less gas more fun optimising smart contracts through yul
Duration: 00:25:22
Speaker: Christian Reitwiessner
Type: Talk
Expertise: Expert
Event: Devcon
Date: Invalid Date
Scalable Blockchains & Asynchronous Programming
Ethereum's Vitalik Buterin presents on scalability and asynchronous programming.
Raiden Network: Getting to a production ready payment channel network
The Raiden Network is the payment channel network for Ethereum aiming to help scale Ethereum payment and all Dapps that utilize Ethereum for payments and rely on no on-chain side effects of the payments. There will be a small explanation of what is payment channels and a payment channel network, an explanation of the raiden network protocol and a demo of using Raiden (hopefully by then live on the mainnet). We will close with future plans, expansion of the protocol and showcasing potential applications.
State Channels on Ethereum with Counterfactual
State channels are a critical "layer 2" scaling technology for ethereum. State channels let users conduct "off chain" transactions rapidly, without waiting for blockchain latency, but with each transaction still considered a "final" transfer of digital value or other valuable "state". However, they are difficult to engineer - today, many dapp developers have had to "roll their own" channels. Counterfactual aims to make it easy for developers to use channels in their applications, and get started making secure, scalable, performant ethereum dapps today. This talk will cover: - Overview of state channels technology - Introduction to the Counterfactual framework - How developers can get started using Counterfactual today
A Fast and Scalable Blockchain for Enterprise Users
Almost every bank and major financial institution inChina as well as across the world is eager to revamp their computing infrastructure through blockchain. What a blockchain designed for them should look like? Is it enough to replace PoW with PBFT? What else can we do to leverage the resources enterprise users have? You will find the answers in CITA.
FunFair Technologies' Fate Channels: Lessons learned Implementing State Channels
Jeremy Longley, CTO of FunFair Technologies, will offer a post-mortem on the delivery of their own version of state channels, Fate Channels, to Mainnet. There have been significant challenges along the way, and there's likely to be many more to come as their use scales up. Having deployed a flexible and creative approach, Jeremy will outline how others can bypass these challenges and embrace state channels as best they can.
PISA: Arbitration Outsourcing for State Channels
PISA alleviates the "always online assumption" for all channel protocols and it is necessary for Raiden, L4, Perun, etc. State channels are a leading approach for improving the scalability of blockchains and cryptocurrencies. They allow a group of distrustful parties to optimistically execute an application-defined a program amongst themselves, while the blockchain serves as a backstop in case of a dispute or abort. This effectively bypasses the congestion, fees and performance constraints of the underlying blockchain in the typical case. However, state channels introduce a new and undesirable assumption that a party must remain on-line and synchronised with the blockchain at all times to defend against execution fork attacks. An execution fork can revert a state channel’s history, potentially causing financial damage to a party that is innocent except for having crashed. To provide security even to parties that may go offline for an extended period of time, we present Pisa, a protocol which enables such parties to delegate to a third party, called the custodian, to cancel execution forks on their behalf. To evaluate Pisa, we provide a proof-of-concept implementation for a simplified Sprites and we demonstrate that it is cost-efficient to deploy on the Ethereum network. Blog+Paper: http://hackingdistributed.com/2018/05/22/pisa/
Turbo-Geth: optimising Ethereum clients
As Ethereum network becomes gets more and more use, the load on the system grows, and the scalability becomes the primary concern. While concepts like Plasma, State Channels, and Sharding offer medium to long term solutions, client software optimisation have a potential to create enough runway in the short term. Turbo-Geth is an experiment to challenge various design choices made in major Ethereum clients and see the outcome. It is currently a fork of go-ethereum, but hopefully the insights are applicable to other client implementations too. This presentation will report on main experiments, findings, benchmarks, and the current state of Turbo-Geth project.
Optimistic Execution: Putting the Internet on Ethereum
Ethereum can serve as an arbiter of trust for the entire internet. To make this a reality we'll have to scale. Our best bet to scale is constructing a comprehensive layer 2.What do plasma, state channels, optimistic rollup, & ETH2 have in common? Optimistic execution! Or in other words, they each make inferences about future Ethereum state based on local information--think fork choice on top of a state machine. Using this concept we construct the Optimistic Virtual Machine (OVM), baking inference logic directly into wallet & application software. In this talk we discuss how the key role trust will play in the internet--from DeFi to timestamping--and how we can build the underlying infrastructure to support internet scale. These are exciting times for blockchain infrastructure. Now we just need to solve identity & UBI -- easy!
Scalabilty with zKSNARKs
Scalabilty with zKSNARKsThis session will introduce iden3’s zkSNARKs implementation and how it will be used at two scenarios: For the trustless relayer implementation at the identity management environment, allowing the identities to perform claims without cost at big scale.And the rollup project for Ethereum scalability, allowing verifiable computation off-chain to increase transaction throughput
ELI5: Scaling Ethereum
Everything you wanted to know about approaches to scaling Ethereum