ETHOnline 2025
2025-10-10..2025-10-31
-- online --
[ETHOnline 2020, ETHOnline 2021 Compound Grants Summit, ETHOnline 2022 DevTools Summit, ETHOnline 2025, ETHOnline 2026]
who it's for
hackathon participants, web3 developers, smart contract developers, protocol engineers, ai and agent developers, full stack blockchain builders, blockchain devops engineers
topics
parallel EVM execution; concurrency library for contracts; ASI agent stack integration; Agent Chat Protocol v0.3.0; Data Coin (POP) tokenization; Lighthouse + Filecoin storage; EVVM virtual chains; Pyth oracle integration; HyperIndex with HyperSync; Hedera SDKs and HTS integration; Scaffold-ETH rapid development; PYUSD dollar-pegged stablecoin
| title | author | length |
|---|---|---|
| Kickoff | Kartik Talwar | 31m |
Welcome and platform note: the event runs on Discord and the hacker dashboard, hacking opens now with 1500 hackers across 83 countries, submissions due Oct 26… | ||
| Arcology - Parallel Execution - Unlimited Throughput | Vincent Wei | 19m |
Arcology claims near-unlimited scalability by running transactions side-by-side across execution units and a conflict detector that commits only… | ||
| How to build with ASI tech stack | Kshipra Dhame | 49m |
Shows how to build discoverable, interoperable agents using uAgents, Agentverse/AgentWars and the ASI1 LLM, with live demos that start agents, exchange… | ||
| Make a Vincent App in 20 minutes | Chris Cassano | 21m |
Builds and deploys a working Vincent app called Warren Buffett DCA bot that dollar‑cost‑averages into undervalued tokens using Lit Protocol’s threshold… | ||
| Create Data Coin and Agent – Aakash Taneja | Aakash Taneja | 07m |
Shows a full, working pipeline: Lighthouse + Filecoin storage with built‑in encryption and on‑chain access control, MetaMask login, API keys and JS/Python SDK… | ||
| EVVM Transactions & Functions for Beginners | Kevin Padilla | 13m |
EVVM is a smart‑contract layer that spawns customizable virtual chains on a host like Ethereum; the repo layout on GitHub includes testnet contracts, name… | ||
| All About Pyth | Nidhi Singh | 28m |
Pyth explains a pull‑based oracle stack: use Hermes + the Solidity SDK to fetch updates, then call an on‑chain update before getPriceNoOlderThan; that workflow… | ||
| Index, Query, Ship - HyperIndex + HyperSync Live | JonJon Clark | 32m |
Live demo builds a multi‑chain indexer that tracks Aave flash‑loan events on Ethereum and Arbitrum, using nvo init, autogenerated handlers and schema edits… | ||
| Hedera Workshop - EVM, SDKs, and AI Agents | Jake Hall | 31m |
Hedera presents concrete build paths: multi-language SDKs (JS/Java/Rust plus Go/Swift/Python) for account/token flows, EVM-compatible contracts via Contract… | ||
| The Best Stack For Building Ethereum Apps And How To One Shot Bangers | Austin Griffith | 32m |
Speedruns a Scaffold-ETH project: run Scaffold-ETH init, spin up a local Anvil chain, hot-reload a burner-wallet front end and use the Debug Contracts panel… | ||
| Artificial Superintelligence Alliance Workshop | Kshipra Dhame | 30m |
Shows how to build and register agents discoverable by Agentverse & ASI-1 using the uAgents Python SDK, demos hosted, local and mailbox agents and the Agent… | ||
| PYUSD 101 | Mehak Jethmalani | 27m |
PayPal launches a dollar‑pegged stablecoin designed for fast, 24/7 on‑chain settlement and interoperable rails: PYUSD = 1:1 USD, ERC‑20 and live on Ethereum… | ||
| Build Unchained Apps | Robin Roy | 34m |
Avail Nexus claims developers can deploy once and pull user liquidity from anywhere, turning many 1→1 bridges into a single N→1 bridgeAndExecute that can… | ||
| Signing on Behalf of Users Without Their Private Keys | Wyatt Barnes | 29m |
A noncustodial framework called Vincent uses PKPs sharded across Lit nodes with threshold signatures inside TEEs to let apps sign for users without holding… | ||
| Create Data Coin and Agent – Nandit Mehra | Nandit Mehra | 32m |
Lighthouse provides client‑side encrypted, pay‑once perpetual storage funded by an on‑chain endowment that pays Filecoin miners, with per‑file keys sharded… | ||
| Launch Explorers, Integrate SDKs & Build AI Apps | Kirill Fedoseev | 26m |
Launch a customizable blockchain explorer in five minutes with Autoscout launchpad (production instance hosted on Blockscout), used by over 3,000 EVM networks… | ||
| Finale – Finalists Announced! | Kartik Talwar | 01h 16m |
Event recap and finalist reveal: the hackathon draws 1,670 hackers and produces 634 submissions, judges pick ten finalists (Open Pay, Siphon, Wannabet, Dflow… | ||
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