Devcon Archive

Building a Decentralized BitMEX Using an Optimistic Financial Contract (OFC) Framework: New Tools for Fast and Secure Financial Contracts on Ethereum preview

Devcon

Breakout

21:31

Building a Decentralized BitMEX Using an Optimistic Financial Contract (OFC) Framework: New Tools for Fast and Secure Financial Contracts on Ethereum

We introduce the Optimistic Financial Contract (OFC) framework, a novel approach to financial contract design that allows for hyper fast, secure, and scalable DeFi contracts *without* requiring an on-chain price feed. This framework makes it easy for developers to build otherwise complex synthetic financial derivatives on Ethereum. We show how this design can be used to build a decentralized derivatives exchange (aka BitMEX) that can be as performant as the centralized alternatives. How it works: optimistic contracts work by assuming contract participants will act optimistically to avoid penalties. This formalization borrows heavily from Plasma and state channel research. “Long” contract participants enforce that “shorts” remargin contracts on a timely basis (and vice versa). Surprisingly, no on-chain price feed is required—an oracle is *only* needed to resolve disputes in what is conceptually similar to Plasma’s exit games. This simple framework works at both the L1 and L2 levels and can be extended to create almost any type of financial contract developers can imagine.

Farcaster frames: building embeddable Ethereum apps preview

Devcon

Workshop

1:24:46

Farcaster frames: building embeddable Ethereum apps

Frames are an open standard for creating embeddable, interactive apps in social media feeds and on the web. They help solve one of the hardest problems for Ethereum dapp developers: distribution. Although frames originated on Farcaster, it's now possible to build cross-platform frames that work on Farcaster, Lens, XMTP, and the open web. In this hands on workshop we'll introduce the core concepts behind frames and build a simple frame app that interacts with a smart contract.

Keynote: Nomic Foundation’s vision for Ethereum’s tooling ecosystem preview

Devcon

Talk

17:35

Keynote: Nomic Foundation’s vision for Ethereum’s tooling ecosystem

Nomic Foundation is the nonprofit behind Hardhat. Nomic’s co-founder and CTO will walk you through Nomic’s long-term vision for a community-driven developer tooling ecosystem for Ethereum.

Devcon

Talk

15:24

Augur

Dr. Jack Peterson presents on Augur (http://www.augur.net/), an open-source, decentralized prediction market built on Ethereum.

Devcon

Talk

17:20

Digital Identity

Christian Lundkvist of ConsenSys (https://consensys.net/) presents on digital identity.

Devcon

Talk

22:32

Introduction to Snarks

Blockchains are a hostile world were all information is public and computations are expensive. A technology called zkSNARKs is coming to the rescue: It allows both a tremendous speedup in verifying the correctness of a computation while at the same time it hides the private details from prying eyes. This talk tries to give an idea about how and why it works.