devcon 6 / eli5 scaling ethereum
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Devcon
Talk
26:42
A Better Mental Model for Rollups, Plasma, and Validating Bridges
Sidechains, Plasma, Rollups, Valdiums, AnyTrust, PoS chains, Crypto Exchanges, all have one thing in common: the bridge. This talk provides an overview on the trust assumptions, threat model, security goals and solutions associated with the humble bridge smart contract. As we will see, rollups emerged because of the scalability bottlenecks faced by Ethereum, but the product-market fit is solving the operational security issues for bridging funds from Ethereum to an off-chain system.
Devcon
Talk
23:52
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/
Devcon
Talk
20:52
Scalable Blockchains & Asynchronous Programming
Ethereum's Vitalik Buterin presents on scalability and asynchronous programming.
Devcon
Talk
22:13
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.
Devcon
Talk
25:22
Less Gas, More Fun: Optimising Smart Contracts through Yul
Due to the relative simplicity of the Ethereum Virtual Machine, it is possible to perform heavy analyses in order to optimize bytecode. The jump operations are a main obstacle for this, because they might require a preservation of all basic blocks in the worst case. To overcome this, Solidity's new optimizer operates on an intermediate language called Yul, which is close to EVM bytecode (and also wasm) but abstracts jump operations through real function calls. Each of the many optimizing operations are simple local equivalence transforms whose effects can be inspected at any time and which in combination should be both more reliable and efficient than the classic optimizer.
Devcon
Talk
1:01:28
Snarks for mixing, signaling and scaling
There is general interest in the ethereum community to scale ethereum by moving dapps inside snarks. The key to do this is to make an efficient signature function available inside a snark. We present this signature function https://github.com/barryWhiteHat/baby_jubjub_ecc designed to work efficiently inside a snark. Furthermore we describe an architecture to scale ethereum using snarks. We discuss the trade offs required and compare them to building a dapp inside the evm.
Devcon
Talk
31:41
Cryptoeconomics at Scale
The next wave of internet applications will not only compete on functionality, but also incentives. With cryptoeconomic research we are witnessing the beginnings of incentive analysis being applied to the architecture of internet protocols. As this body of research grows, common methodologies are beginning to emerge. These methodologies are also beginning to be composed to produce even more sophisticated and scalable protocols. This talk provides an overview of these cryptoeconomic methodologies and calls for help in the quest to build a fairer web.
Devcon
Talk
24:50
On the Path to a Rollup-Centric Future
It’s only been slightly over a year since Arbitrum launched as the first optimistic rollup that supported general EVM contract deployment. In that time many components have shifted, many users have migrated, and an entirely new generation of technology has shipped with Nitro. Now we look towards tackling the next set of challenges in working towards Ethereum’s rollup centric future, where using Ethereum will mean using a rollup.
Devcon
Talk
28:49
Onboard The World Into Your Rollup dApp with BLS Wallet
Bringing non-web3 native users into a dApp is always a fraught, friction filled experience, even with cheaper transaction costs on rollups. In this talk, we will show you how you can modify a dApp using BLS signatures & a smart contract wallet to: - Embed a wallet directly in your dApp, and allow users to eject by swapping its public key. - Bundle multiple transactions into one and submit to an aggregator to lower friction & save on gas. - Pay for your user's transactions.
Devcon
Lightning Talk
08:22
Ups and Downs: Onboarding a Million Users to Layer-2
In the last year we’ve seen thousands of projects and billions of dollars migrate over to rollups. Liquidity and users have started aggressively migrating, but there’s still a long way to go. In this talk we’ll cover successful use cases, pain points that make it challenging for both users and developers to onboard, and emerging projects and protocols in the layer 2 space that are showing a lot of promise.