devcon 2 / a provably honest oracle model auditable offchain data gathering and computations
Duration: 00:10:20
Speaker: Thomas Bertani
Type: Talk
Expertise: Advanced
Event: Devcon
Date: Invalid Date
Lightning Talk: Provably Honest Oracle Service
Thomas Bertani presents on Oraclize (http://www.oraclize.it/), a set of tools and APIs aiming to enhance the power of smart contracts by pushing external data to the blockchain.
Scalable Onchain Verification for Authenticated Data Feeds and Offchain Computations
Ethereum smart contracts live like in a walled garden and they cannot fetch offchain data by themselves. One approach to securely feed offchain data into smart contracts is to provide attestation-backed data authenticity proofs that anybody can verify to ensure that the data-transport-layer is safe. By leveraging some new techniques, it is possible to do an effective onchain verification: the smart contract receiving the data can easily verify its authenticity onchain at a negligible cost and with a minimum amount of data.
Blockchain Model Canvas
Blockchain Model Canvas
Shh! Whisper
Ethereum's Co-Creator Dr. Gavin Wood presents on Whisper (https://github.com/ethereum/wiki/blob...), the 'pitch black' P2P messaging protocol. Apologies for the poor video framing, individual slides can be found here - http://www.slideshare.net/gavofyork/w...
Casper the Friendly GHOST: A correct-by-construction blockchain
Vlad Zamfir presents their talk titled, "Casper the Friendly GHOST: A correct-by-construction blockchain"
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
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.
Augur
Dr. Jack Peterson presents on Augur (http://www.augur.net/), an open-source, decentralized prediction market built on Ethereum.
Digital Identity
Christian Lundkvist of ConsenSys (https://consensys.net/) presents on digital identity.
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.