Devcon Archive logo
Devcon Forum Blog
  • Watch
  • Event
    Event: background logo
    • Devcon 7
    • Devcon 6
    • Devcon 5
    • Devcon 4
    • Devcon 3
    • Devcon 2
    • Devcon 1
    • Devcon 0
  • Categories
    Categories: background logo
    • Cryptoeconomics
    • Devcon
    • Developer Experience
    • Coordination
    • Core Protocol
    • Layer 2s
    • Real World Ethereum
    • Cypherpunk & Privacy
    • Security
    • Applied Cryptography
    • Usability
  • Playlists

Suggested

Loading results..

View all

About Devcon —

Devcon is the Ethereum conference for developers, researchers, thinkers, and makers.

An intensive introduction for new Ethereum explorers, a global family reunion for those already a part of our ecosystem, and a source of energy and creativity for all.

  • Watch
  • Devcon
  • Forum
  • Blog

Get in touch

devcon@ethereum.org

Subscribe to our newsletter

Crafted with passion ❤️ at the Ethereum Foundation

© 2025 — Ethereum Foundation. All Rights Reserved.

devcon 3 / snopes meets mechanical turk on a blockchain reality keys on chain truth verification and subjectivocracy

  • YouTube
  • IPFS
  • Details

Snopes meets Mechanical Turk on a Blockchain: Reality Keys, On-chain Truth Verification and Subjectivocracy

Duration: 00:19:51

Speaker: Edmund Edgar

Type: Talk

Expertise: Intermediate

Event: Devcon

Date: Invalid Date

The next-generation smart contract oracle platform by Reality Keys crowd-sources the process of data gathering and fact checking with an incentive-based system on the Ethereum blockchain. Our system is designed allow contract authors to fetch arbitrary structured or unstructured factual data, without relying on a pre-existing trusted off-chain data source.

Categories

Developer Infrastructure
  • Related
Lightning Talk: Reality Keys preview
Devcon
Talk
03:56

Lightning Talk: Reality Keys

Edmund Edgar presents on Reality Keys (https://www.realitykeys.com/). The Reality Keys™ service provides automated and human-verified data designed to enable a new generation of automated, trust-free information services.

Augur preview
Devcon
Talk
15:24

Augur

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

Digital Identity preview
Devcon
Talk
17:20

Digital Identity

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

Introduction to Snarks preview
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.

Missing Links in the Ethereum Stack preview
Devcon
Talk
22:19

Missing Links in the Ethereum Stack

Observations about what developer tools missing from the Ethereum stack, yet currently available to traditional web developers.

Scalable Responsive Đapps with Swarm and ENS preview
Devcon
Talk
26:48

Scalable Responsive Đapps with Swarm and ENS

Daniel Nagy gives their talk titled, "Scalable Responsive Đapps with Swarm and ENS"

Sikorka – Proof of Presence for Blockchain Applications preview
Devcon
Talk
13:52

Sikorka – Proof of Presence for Blockchain Applications

Sikorka – Proof of Presence for Blockchain Applications

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.

Blockchain Model Canvas preview
Devcon
Talk
12:36

Blockchain Model Canvas

Blockchain Model Canvas