ETHGlobal · Nov 7, 2025

Jonjon Clark (Nivo) shows how to build fast, multi-chain blockchain indexers with HyperIndex and fetch raw chain data with HyperSync. He demos real-time dashboards (swaps, liquidity, prices, liquidations), then live-codes an indexer that tracks Aave flash-loan events across Ethereum + Arbitrum using nvo init, auto-generated handlers, GraphQL queries, and schema edits. He closes with HyperSync use cases (data analysis, explorers), the web query builder, and docs/prize pointers. 00:09 Intro, prizes, why indexing matters 01:50 Multi-chain pain → HyperIndex 03:46 Example dashboards (swaps, liquidity, prices, stablecoins, liquidations) 07:08 What HyperIndex is (fast, multi-chain, dev-first) 08:38 Live build: nvo init, import ABI, select events 10:59 Add second network (Arbitrum), autogen project 12:02 Run dev indexer, rapid sync over millions of blocks 13:11 Query with GraphQL (biggest flash loans) 14:56 Project structure: config, handlers, schema 16:22 Edit schema/handlers (add timestamp), regenerate, rerun 17:37 Q&A: all users, wildcard indexing (ERC20 approvals/transfers) 19:40 HyperIndex recap 20:04 Real-time data, speed notes; HyperRPC vs RPC 21:30 HyperSync intro (fast data node/service, clients) 22:37 Use cases: chain density, Hypertui, log scanners, explorers, approvals tool 25:10 Web Query Builder demo: filters, fields, execute, CSV 27:22 Support links, final Q&A (agent use case, data source, Hypersync service) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 💻 ETHOnline 2025 This workshop is specifically for ETHOnline 2025, a 21-day hackathon held October 10 - 31, 2025, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow Envio X: https://x.com/envio_indexer ✅ Follow ETHGlobal X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city

ETHGlobal · Oct 7, 2025

Learn how to build with Nodit's blockchain infrastructure in this ETHGlobal Taipei 2025 workshop. Discover elastic nodes, Web3 data APIs, and real-time data streams for simplified blockchain development. The video covers practical implementations of Nodit's tools and details about $10,000 in hackathon prizes across two tracks: Apps on Base and Multi-Chain Apps. Get step-by-step guidance on setting up webhooks, monitoring blockchain activity, and building cross-chain applications with Nodit's developer platform. 00:00 - Introduction to Nodit's blockchain developer platform 00:57 - Elastic nodes: Managed blockchain infrastructure 02:25 - Connecting to blockchain networks in Nodit console 03:25 - Testing JSON-RPC methods with Node API 05:34 - Web3 Data API for structured blockchain data 06:20 - Retrieving token balances with Web3 Data API 08:33 - Monitoring API usage with request logs 09:22 - Real-time updates with Webhooks 10:09 - Setting up blockchain event webhooks 12:00 - Continuous data streams for real-time monitoring 13:37 - Implementing blockchain streams in JavaScript 15:26 - Nodit developer documentation and resources 16:21 - Hackathon Tracks 17:52 - Final tips and Discord support _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇹🇼 *ETHGlobal Taipei* This workshop is specifically for ETHGlobal Taipei, a 3-day hackathon held April 4-6 2025, that brought together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow *Nodit* X: https://x.com/NoditPlatform ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

ETHGlobal · Oct 7, 2025

Discover how to build with Nodit's full-stack Web3 developer platform in this ETHGlobal Taipei 2025 workshop. Learn to leverage high-performance blockchain nodes (Ethereum, Base, Optimism), real-time data APIs, and push-based webhooks for your hackathon projects. Damon Yoon demonstrates Nodit's elastic nodes for low-latency RPC access, pre-indexed Web3 data APIs for token balances/transfers, and live data streams for contract events. With $10K in prizes for multi-chain DeFi projects, this workshop covers integration guides, testnet faucets, and judging criteria for the best use of Nodit's tools. 00:00 – Introduction: Nodit’s Full-Stack Web3 Platform 01:10 – Supported Chains: Ethereum, Base, Optimism & More 02:07 – Elastic Nodes: Low-Latency RPC Endpoints 03:12 – Console Demo: API Keys & Node Performance Metrics 04:08 – JSON-RPC Methods: Fetching Block Data 05:13 – Web3 Data APIs: Token Balances & Transfer History 06:16 – Single-Call Efficiency vs. Raw Node Queries 07:22 – Webhooks: Real-Time Transaction Notifications 09:24 – Data Streams: Live Blockchain Event Subscriptions 11:32 – Code Walkthrough: Configuring Stream Connections 13:44 – Webhooks vs. Streams: Key Differences 14:45 – Hackathon Prizes ($10K): Base & Multi-Chain Tracks 16:53 – Support Channels: Discord, Docs & Booth Visits _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇹🇼 *ETHGlobal Taipei* This workshop is specifically for ETHGlobal Taipei, a 3-day hackathon held April 4-6 2025, that brought together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow *Nodit* X: https://x.com/NoditPlatform ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

ETHGlobal · Oct 7, 2025

JonJon Clark, co-founder of Envo, presents on "Lightning Fast Multichain Indexing," focusing on the challenges and solutions for indexing onchain data across multiple blockchains. He explains the importance of indexing for fast data retrieval in blockchain applications, especially as the ecosystem becomes increasingly multichain. Clark introduces Hyperindex, an open-source developer framework designed for high-speed, multi-chain native indexing, enabling developers to aggregate and access blockchain data efficiently via a unified API. He demonstrates use cases such as real-time Uniswap v4 activity, cross-chain ETH price analytics, and oracle data updates. Clark also highlights Hypersync, a data-serving layer optimized for rapid data access, powering tools like Chain Density, Hypertui, Log2, Scope, and Snub. These tools showcase the speed and flexibility of the Envo stack, making complex data queries and cross-chain analytics accessible and developer-friendly. He invites developers to try Hyperindex and Hypersync, emphasizing their robust local and hosted experiences, GitOps integration, and free development tier. 00:00 Introduction 00:41 What is Indexing? 02:19 Indexing in Blockchain Context 04:10 The Multichain Challenge 05:00 Introducing Hyperindex 06:10 Hyperindex in Action & Use Cases 08:01 Why Hyperindex is Great 10:15 Why Hyperindex is Fast 11:21 Introducing Hypersync 12:10 Hypersync Use Cases 15:09 Snub & Security Tools 16:23 Conclusion & Call to Action _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇫🇷 *Pragma Cannes* Pragma Cannes 2025 was held on July 3rd at the Carlton Cannes in Cannes, France and was an in-person summit for builders and leaders in the web3 ecosystem. Watch the full Pragma Cannes YouTube Playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh6jZYPY5-YIBzvMtUT3ajjI ETHGlobal's Pragma series takes place in cities around the world, and is designed to be a different kind of event. Pragma is a one-stage conference with founders-only on stage, bringing together a small group of curated attendees and speakers to discuss the future of web3 and reflect on the past. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow ETHGlobal X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/@UCfF9ZO8Ug4xk_AJd4aeT5HA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Are you interested in Ethereum development and entrepreneurship? 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

ETHGlobal · Oct 7, 2025

Nikolay Dimitrov from FetchAI introduces the integration of large language models (LLMs) and AI agents within the FetchAI and ASI, Artificial Superintelligence Alliance, ecosystem. The platform features a 39B parameter LLM, an open-source agent hosting platform (Agentverse AI), and a foundational Web3 layer with the Almanac smart contract for agent discovery. Users can express intents (e.g., DeFi strategies, property search, EV charging) in natural language, and the system finds or creates agents to fulfill these tasks, enabling actionable outputs beyond simple text. Developers can easily build, register, and deploy agents for any conceivable use case, benefiting from robust documentation and a supportive community. The system supports real-time data integration and agent interoperability, fostering a two-sided marketplace for users and developers. A hackathon is announced, highlighting the growing demand for AI agent developers as a viable, high-impact career path. Resources, support, and examples are available via FetchAI docs and Discord. 00:00 Introduction 00:32 Human Intents and Use Cases 01:03 System Components Overview 01:56 ASI1 LLM and Agent Hosting Platform 02:40 Documentation and Core Architecture 02:59 Smart Contract and Agent Registration 03:52 Benefits and Real-World Applications 05:05 Developer Opportunities and Framework 05:54 Use Cases Beyond Web3 06:18 User Base and Agent Deployment 06:42 Live Demonstration: Prompting the LLM 07:23 Agent Search and Reasoning 08:03 Creating and Hosting Agents 08:56 Recap: LLM with and without Agents 09:28 Real-Time Data and Use Case Examples 10:14 General Purpose AI and Infrastructure 11:03 EV Charging Agent Demo 12:12 User-Agent Interaction 12:45 Compound AI Systems and Integrations 13:38 Search, Discovery, and Developer Opportunities 14:19 Hackathon Announcement 14:47 AI Agent Development as a Career 15:33 Hackathon Support and Resources 16:22 Accessing Resources and Community 17:09 Documentation and Getting Started 17:30 Conclusion _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇫🇷 *ETHGlobal Cannes* This workshop is specifically for ETHGlobal Cannes, a 3-day hackathon held July 4-6, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal Cannes 2025 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh5N2DCwhcEshNW9C8knZ1T-&si=Lc-WOyfkAVP2--R4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Artificial Superintelligence Alliance* X: https://x.com/ASI_Alliance ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

ETHBerlin · Sep 5, 2024

ETHBerlin04 May 24-26, 2024, CIC Innovation Campus Keynote: Matthew Hodgson - The Challenge of Decentralised Communication In this talk, Matthew explains the challenges they have hit in building Matrix to compete with the mainstream alternatives, how they are solving them, why it's taken so long, and why it's more important than ever to keep the ideal of decentralised communication alive. ETHBerlin04 - https://ethberlin.org A Department of Decentralization event - https://dod.ngo The video features a speaker discussing the importance of decentralized communication and the challenges faced in developing a decentralized communication protocol, using their experience with Matrix as an example. The speaker highlights issues with centralized platforms like Discord and Slack, which range from privacy concerns to outright bans in certain countries. They advocate for decentralization as a more resilient and lasting solution. Matrix is described as an open-source project that offers secure, decentralized real-time communications for various applications such as chat, VoIP, VR/AR integration, and IoT data exchange. The speaker provides statistics to establish the credibility of Matrix, mentioning its growth to around 4.5 million monthly active users. The ecosystem of Matrix includes specifications, server implementations by both the Matrix Foundation and third parties, client SDKs across multiple programming languages, and a wide array of clients for different platforms and use cases. Despite being designed for democratized communication, it is noted that governments are major users of the platform. The challenges of decentralization are emphasized with focus being the main issue identified by the speaker. They reflect on how decentralization has made development significantly more complex compared to their previous centralized projects. The talk also touches upon governance within the Matrix community, developer experience considerations, and the decision-making process regarding what features to prioritize within the protocol. In summary

ETHGlobal · Oct 7, 2023

Join Swaroop Hegde, co-founder of PowerLoom, as he unveils a groundbreaking approach to scalable, verifiable on-chain data aggregation using snapshots, cryptographic proofs, and decentralized storage systems like IPFS and Filecoin. In this live demo at Pragma Waterloo, Swaroop showcases how PowerLoom nodes can be easily deployed in minutes with no gas required, transforming how we think about data availability, composability, trustlessness, and the future of Web3 infrastructure. Learn how PowerLoom addresses limitations in traditional query-driven indexing by enabling precomputed, verifiable snapshots across chains, and how this powers composable applications and use cases like Uniswap analytics, DAO operations, and more. 00:00 Intro to PowerLoom and the demo 00:40 Swaroop’s journey from Matic to PowerLoom 01:48 Early scale challenges and on-chain data limits 02:49 The origin of PowerLoom and snapshot concept 03:23 How PowerLoom works: snapshots and proofs 04:24 Use case: Uniswap analytics without querying 05:21 Launching a PowerLoom node with GitHub Codespaces 07:04 Testnet access and current participation rules 08:01 Tracking Uniswap pairs and epochs 09:35 How consensus finalizes snapshots 10:17 Viewing snapshots and verifying on IPFS 11:23 Node successfully submits snapshot data 12:05 Live demo success and story of the original hackathon 13:42 Why decentralization and data integrity matter 14:46 How PowerLoom ensures trusted data availability 15:54 Comparing PowerLoom to The Graph 16:56 Latency tradeoffs and precomputation 17:27 What PowerLoom enables for new Web3 apps 18:30 Final thoughts and invitation to build with PowerLoom _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇨🇦 *Pragma Waterloo* The now third edition of Pragma kicked off with a curated series of high-quality talks that sparked thought and discussion among attendees as they were storming into the Auditorium of the CIGI Building. Pragma Waterloo 2023 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma Waterloo 2023 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh7i8oFx5vCB9qTdadQqAjF0&si=NS2W71SteTbEs4T8 ETHGlobal's Pragma series takes place in cities around the world, and is designed to be a different kind of event. Pragma is a one-stage conference with founders-only on stage, bringing together a small group of curated attendees and speakers to discuss the future of web3 and reflect on the past. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Swaroop Hegde* X: https://x.com/SwaroopH ✅ *Follow Powerloom* X: https://x.com/Powerloom ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _