ETHGlobal Buenos Aires 2025
2025-11-21..2025-11-23
Buenos Aires, Argentina
| title | author | length |
|---|---|---|
| Introduction to Flare Protocols | Victor Muñoz | 21m |
Flare is a L1 with enshrined oracles and the demo shows a runnable Hardhat starter kit that takes a Star Wars web‑API call, processes it with jq, triggers an… | ||
| Recap | 05m | |
Recap lists concrete outcomes: event at CEC Centro de Convenciones Buenos Aires returned after 7 years, staging 10 hackathons with 1–2,000 people each, 125… | ||
| Recap Video | 02m | |
Recap shows hackers shipping concrete prototypes: a lending protocol, proof of fire cameras, a paybot, and a rented bus turned into a demo, with many teams… | ||
| Amp Enterprise Grade Blockchain Data that Scales | Kevin Jones, Marcus Rein | 17m |
AMP is a SQL-first blockchain database released as a developer preview that serves raw and derived datasets locally or hosted, materializes parquet files into… | ||
| Build verifiable offchain apps powered by stake and Symbiotic! | Ivan Kotelnikov | 21m |
Claims a reusable relay SDK that runs a per-operator sidecar with a gRPC API to answer “am I a validator” and produce aggregated quorum attestation signatures… | ||
| Building With x402 Agents, Paid APIs, & Embedded Wallets | Josh Nickerson, Erik Reppel | 20m |
Four $5,000 prizes reward projects using Coinbase Developer Platform tools and the session shows exactly how to wire them together: embedded wallet under the… | ||
| Building on Zircuit A Hackathon Introduction | Jan Gorzny | 19m |
Introduction to building on Zircuit outlines concrete claims and exact resources: sequencer-level security uses an AI trained on billions of historical… | ||
| Yellow Network High Performance Apps with State Channels | Andrew Kushniruk | 17m |
Workshop demos a state-channel platform that delivers near-instant transactions by routing messages over a websocket-connected Yellow node, settling disputes… | ||
| Getting Started with Privacy App Development on Aztec | Josh Crites | 19m |
Shows how to get a local Aztec DevNet running and deploy a simple private voting contract using the Aztec Starter repo and Dockerized tools (aztec up, aztec… | ||
| Build an Onchain AI dapp with 0G's Inferencing | Gathin T | 16m |
Workshop describes an EVM‑compatible layer‑1 called 0G that claims <500 ms block time and 11k TPS, an AI‑optimized storage that uploads a 100B+ parameter model… | ||
| Build your first workflow with CRE | Solange Gueiros, Harry Papacharissiou, Andrej Rakic | 24m |
Chainlink Runtime Environment (CRE) ships as a CLI that compiles workflows written in Go or TypeScript into off‑chain binaries executed by Chainlink nodes… | ||
| Uniswap v4 Exploring New Possibilities | Nico Acosta, Angela Ocando | 23m |
Uniswap v4 moves all pools into a singleton architecture with internal token accounting and flash accounting, adds unlimited and dynamic fees, and exposes… | ||
| Circle Workshop | Corey Cooper | 24m |
Circle announces ARC, an open L1 public testnet launched Oct 27 with deployed USDC and EURC so builders get compliant dollars and euros on-chain; ARC is… | ||
| Web Proofs on Ethereum with vlayer | Artur Chmaro | 23m |
vlayer notarizes HTTP responses using TLS Notary and a web prover server that runs an MPC with a notary, then exchanges the large web proof for a compressed ZK… | ||
| Building with Hyperlane Interoperability Framework | Eda Akturk | 21m |
Hyperlane presents a permissionless open‑source cross‑chain stack: a standard mailbox contract on each chain plus off‑chain relayer agents, a TypeScript SDK… | ||
| ENS - Identity in Your Apps | Greg Skril | 20m |
ENS maps readable names to chain addresses and back, demonstrating forward resolution and reverse resolution with a live set-name call on Base via MetaMask and… | ||
| Ledger Direct Connectivity for dApps | Mathieu Bertin | 16m |
Ledger sells over 8 million devices and secures roughly 20% of crypto assets and now offers Ledger wallet button — a drop‑in web component that gives direct… | ||
| The Developer Gateway to Bitcoin’s DeFi | Olia Dukova | 12m |
Rootstock (branded here as rooto) positions itself as an EVM-compatible Bitcoin sidechain with merge-mining security and working metrics: 400M TVL, 2,700 BTC… | ||
| How to Deploy on Fluence Cloudless Computer | Alexey Proshutinskiy, Dmitry Kurinskiy | 15m |
Fluence offers a decentralized cloud that lets projects spin up containers, VMs or bare metal across tier‑3/4 data centers with 2–128 vCPUs and GPU instances… | ||
| Ethereum Interop Layer EIL SDK Workshop | Alex Forshtat, Dror Tirosh, Shahaf Nacson, Ofir Eliasi | 18m |
EIL SDK provides a concrete crosschain builder that composes per-chain batches of onchain actions, uses multi-chain token definitions to pick the right address… | ||
| A Guide to Building Bitcoin Applications on Citrea | Talip Akalin | 23m |
Citria is an EVM-compatible Bitcoin rollup that stores its chain data on Bitcoin, runs Solidity contracts unchanged, and has been live on testnet for over a… | ||
| Learn how to Pull Prices and consume Random Numbers | Aditya Arora | 28m |
Pith exposes a pull-based oracle (Hermes) that serves 2,500+ prices every 400ms and verifies on‑chain via signed Merkle roots. An EVM integration uses a… | ||
| Build 8004 Agents with Oasis | Bernhard Ruf | 20m |
Workshop demonstrates building verifiable agents using Oasis Sapphire and Ruffle with the ERC‑8004 identity and validation registries and a startup sidecar… | ||
| Building Verifiable Agents with the Triple Verified Stack | Sumeet Chougule | 15m |
An accountability protocol called chaos chain is under active development and a usable SDK (Python + TypeScript) already demonstrates a triple verified stack… | ||
| Intro to Chiliz and the Chiliz Chain | Arnaud Burgniard | 06m |
Chiliz presents a layer-one EVM-compatible chain with proof-of-stake validators (PSG, OKX, Paribu, Luga nodes) and claims more than 50 projects already… | ||
| Filecoin - Building with the Filecoin Onchain Cloud | Nick Lionis | 14m |
Demo of the Filecoin Onchain Cloud stack shows a working warm-storage marketplace: a PDP protocol issues proof events, an orchestrator + Filecoin Pay streams… | ||
| Send Tokens and Call Anything Cross Chain | John Nguyen | 29m |
Explains how LayerZero + Stargate send cross‑chain messages and tokens using a modular DVN security stack (about 54 DVNs available) and an executor that runs… | ||
| Anchorage Digital Workshop | Prasanna Gautam | 19m |
Anchorage open sources a mobile-first transaction visualizer and parser that turns raw call data into human-readable trees, backed by HSMs and a reproducible… | ||
| Virtual Blockchains in 60 Seconds Experts & Vibecoders | Kevin Padilla, Oucan Oucan | 16m |
Claims a full virtual blockchain (EVBN) can be bootstrapped from evbbn.info GitHub repos and deployed with npm run wizard, asking admin/golden/activation… | ||
| How to Build a Viral Mini App on Celo | Sophia Dew | 20m |
Shows how to ship a Celo mini app end-to-end: scaffold with Celo Composer, deploy a Farcaster mini app that uses the WagMe provider for auto-connect, and demo… | ||
| Self Workshop | Evi Nova | 17m |
Self turns passport MRZ + NFC chip reads into a Groth16 ZK proof stored in an on‑chain Merkle tree on Celo, with the TE verifying then destroying raw data… | ||
| Build compliance enabled RWA projects with MultiBaas | William Metcalfe | 22m |
Stablecoins hit $277 billion and tokenized assets reach $3.1 trillion (≈2.5% of global GDP), so finance needs tokens with identity, freezing, recovery and rule… | ||
| Giving your LLMs their own crypto wallets | Bruno Skvorc, Akshat Gada | 13m |
Workshop shows how to give LLMs on Polygon real crypto wallets and use X42 HTTP payments: an LM wallet MCP server demo creates HD wallets, imports keys, checks… | ||
| The Art of AMM | Anton Bukov | 34m |
Finds that top AMM pools keep large portions of liquidity idle, fragmented and locked in pools, then presents 1inch Aqua: a shared-liquidity layer that leaves… | ||
| The Hackathon stack and how to Speedrun Ethereum | Kevin Jones, Philip Krause | 53m |
Walks through the hackathon workflow: use Scaffold‑ETH (npx create…, yarn chain/start/deploy) to spin up a monorepo (Hardhat or Foundry + Next.js)… | ||
| Mini Apps FTW | Mateo Sauton | 17m |
Mini apps are lightweight web views inside World App that inherit distribution and wallet primitives; the ecosystem reports 1.8 billion mini app opens in a… | ||
| Hedera Workshop EVM, SDKs, and AI Agents | Ed Marquez | 21m |
Workshop shows Hedera’s tech and dev flow with concrete demos and incentives: $10,000 in cash prizes, three hackathon tracks (an agent kit SDK track with… | ||
| Avail Workshop | Naruto 11 | 19m |
Avail Nexus is an SDK that lets a dApp pull liquidity and move tokens across EVM chains in one transaction, with prebuilt Nexus elements (deposit, fast bridge… | ||
| Launch your gasless EVM Blockchain in minutes | Jonathan Pereira | 18m |
Saga lets teams spin up a gasless EVM L1 in minutes via app.saga.xyz: pick a chain name, token, fund duration, genesis EVM address and supply, hit create and… | ||
| Build Widgets with Octav API | Luc Blackburn, Charlie Rabiller | 09m |
Octav API exposes enriched portfolio and transaction data — protocol, asset balances, prices and protocol-position values — in a single API call across all… | ||
| Welcome & Opening Ceremony | Kartik Talwar | 01h 19m |
Welcome to ETHGlobal Buenos Aires: 1,700 attendees, 1,200 hackers, six continents represented, and 36.5 hours to hack and submit with submissions due 9:00 a.m… | ||
| trustless EIL SDK Workshop | Alex Forshtat, Dror Tirosh, Shahaf Nacson | 52m |
A TypeScript SDK implements cross‑chain token transfers using ERC‑447 semantics and a builder that creates per‑chain batches of actions; tokens are locked on… | ||
| Introduction to Aztec Development | Ciara Nightingale | 23m |
Explains why Aztec adds programmable privacy with a UTXO-style private-state model using notes and nullifier Merkle tree to prevent double-spends; shows that… | ||
| How to Vibe Code a Mini App on Celo | Sophia Dew | 25m |
Workshop shows a concrete build: a Farcaster mini app on Celo with three working on‑chain patterns. First, Wagmi hooks implement simple wallet connect and a 1… | ||
| Trustless Bitcoin Vault Bitcoin Charged Ethereum Defi | Jenks Guo | 19m |
A trustless Bitcoin vault uses programmable Bitcoin UTXO and Taproot script to lock BTC on-chain while an Ethereum BTC vault manager contract tracks vault… | ||
| Introduction to Uniswap v4 | Angela Ocando | 11m |
Uniswap v4 introduces a single contract architecture that folds all pools and swaps into one transaction for gas savings, adds 14 hook functions so external… | ||
| Build with Circles - Social trust Based Currency | Sandipan Kundu, Maksym Fedorenko | 28m |
Circles runs as a smart contract on Gnosis Chain with human accounts minting 1 circles per hour (≈24/day) and balances decaying at 7% annual to smooth… | ||
| From Logs to Prod ERC20 Indexer with SQD Pipes SDK & Portal | Ian Guimaraes | 12m |
Builds a production ERC20 transfer indexer using SQD Pipes SDK and Portal that decodes raw EVM logs, maps events to a Drizzle schema and writes to Neon… | ||
| Beginner's Workshop - What to Expect | Pascal Rüger | 01h 04m |
Overview of logistics and rules: registration opens 1:00 p.m. Friday, hacking officially starts 8:00–9:00 p.m., project submission deadline is 9:00 a.m… | ||
| Self Workshop - What is Self, How to Integrate it | Evi Nova | 21m |
Self is a ZK protocol that turns passport/ID chip reads into disclosure proofs; the demo uses the selfxyzworkshop repo to generate a QR, call either an onchain… | ||
| Untitled Web Proofs on Ethereum -vlayer workshop | Artur Chmaro | 10m |
Shows a working pipeline that notarizes an HTTP call to GitHub, extracts repo, handle and merged-PR count, turns that attestation into a proof of… | ||
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