ETHSofia · Oct 6, 2026

Matěj Husák of Trezor argues that self-custody has solved the keys but not the data, such as transaction labels that usually end up in a local file or someone else's cloud. He explains the local-first approach, named in a 2019 Ink and Switch essay, where the device is the source of truth and a relay only syncs encrypted copies, and why it is not the same as offline mode. He then walks through Trezor's use of the Evolu library: deriving the owner ID, write key and encryption key from the wallet seed using SLIP-21, resolving conflicts with hybrid clocks in CRDT message envelopes, limiting relay abuse with a quota manager that checks the hardware wallet, and padding data so the relay sees little beyond owner ID hashes and timestamps. Keynote at ETHSofia 2026, 24 September 2026, Sofia Tech Park, Sofia. Part of Blockchain Week Bulgaria 2026. Speaker ▸ Matěj Husák, Tech Lead, Networks Team, Trezor Self-taught full-stack engineer, TypeScript/React/Node, built across several startups and web3 projects, interested in P2P protocols Chapters 00:00 Not your keys, not your data 01:06 Security versus privacy 02:38 What local-first means 04:11 Local-first is not offline mode 05:43 Three problems: encryption, sync and abuse 07:46 Choosing the Evolu library 08:44 Deriving keys from the seed with SLIP-21 10:02 Conflict-free sync with hybrid clocks 11:16 Default relays and device-authorised quotas 12:06 Threat model: what the relay can see 12:43 UX without passwords 13:50 Q&A: Real-world applications 14:54 Closing titles Blockchain Week Bulgaria: https://www.blockchainweek.bg ETHSofia: https://www.ethsofia.com Future Finance Forum: https://www.blockchainweek.bg/f3 Follow Blockchain Week Bulgaria X: https://x.com/BWBulgaria LinkedIn: https://www.linkedin.com/company/blockchain-week-bulgaria Follow ETHSofia X: https://x.com/EthSofiaBG LinkedIn: https://www.linkedin.com/company/ethsofia Telegram: https://t.me/+b-33LJUpAB5iODNk Nothing in this video is financial advice. About the organiser Blockchain Week Bulgaria, ETHSofia and the Future Finance Forum are organised by the Bithope Foundation, founded in 2014 by Vladislav Dramaliev. Inspired by Andreas Antonopoulos, it is Europe's first non-profit operating exclusively with bitcoin donations. Over more than ten years, it has supported 50+ charitable campaigns, and in January 2016 it co-founded the Sofia Crypto Meetup, now the region's longest-running monthly crypto event. https://bithope.org

Alex Gluchowski

ETHGlobal · Jul 9, 2026

In this talk, Alex Gluchowski, co-founder of Matter Labs and zkSync, presents Prividium, a framework for private atomic delivery versus payment (DvP) on Ethereum. He frames DvP, a term from institutional finance meaning token swap settlement, as one of the most important and unsolved problems for institutions adopting blockchain. Alex walks through why each existing solution falls short: public chains like Ethereum have great properties but expose all positions and transactions, ruling them out for banks bound by secrecy rules. Private permissioned chains offer perfect privacy but are not interconnected, limiting their value since the whole point of blockchains is being the internet of value. External bridges connecting private chains become the de facto settlement layer with their own trust assumptions, losing the security of both origin and target chains. Mediated networks using operator attestation or fully homomorphic encryption still rely on contractual or threshold trust in operators. Alex introduces Prividium as a framework where institutions run their own cryptographically secured private chains on their own infrastructure with absolute physical data privacy, while settling on Ethereum as the credibly neutral settlement layer. Zero knowledge proofs guarantee that even a dishonest or compromised operator cannot finalize invalid transactions. He highlights the ability to deploy a smart contract once that virtually mirrors into all zones and enforces rules automatically without the issuer ever seeing the underlying data. He then walks through the technical flow of private atomic DvP: parties agree on a transaction, generate a cryptographic commitment hash, post it to a data availability layer and Ethereum settlement layer, lock assets on both sides, and use the canonical L2 state roots on Ethereum to verify execution and either release funds or revert atomically. He closes by noting the network is growing with the Kerry network consortium of five US regional banks plus participation from Deutsche Bank and other FMIs. 00:00 Introduction 00:11 What Is DvP and Why It Matters 00:48 The Tradeoffs in Existing Blockchain Solutions 01:07 Public Chains Are Too Public for Institutions 01:54 Private Chains Are Isolated and Disconnected 02:33 External Bridges Become the Settlement Layer 03:14 Mediated Networks and Their Trust Assumptions 03:35 Operator Attested and FHE Limitations 04:40 Introducing Prividium 05:09 Cryptographically Secured Private Chains on Ethereum 05:42 Permissioning, Roles, and OIDC Integration 06:16 Zero Knowledge Proofs Guarantee Execution Correctness 06:50 Rules That Apply Beyond Your Zone 07:30 The Old Way: Bilateral Agreements and Rulebooks 07:52 Virtual Mirrored Smart Contracts Enforce Rules Automatically 08:16 Why Private DvP Is the Hardest Cross Zone Example 08:51 Traditional Sequential DvP and Counterparty Risk 09:40 Atomic Swaps Collapse Settlement Risk 10:10 How Private Atomic DvP Works Step by Step 10:36 Cryptographic Commitments and Mutual Intent 11:17 Posting Commitments to DA and Settlement Layer 11:50 Locking Assets in Escrow Contracts 12:26 Reading L2 State Roots from Ethereum 12:55 Verifying Cross Chain Execution 13:25 Happy Path Release vs Revert Path 14:04 Multi Zone Chained Transactions 14:36 The Kerry Network and Growing Adoption 14:48 Closing _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ *ETHConf 2026* ETHConf is a 3 day event for founders, industry leaders, and builders who are excited about the possibilities of building on top of Ethereum. Connect with 2,000+ top innovators in crypto, finance, technology, and policy at our inaugural three-day event packed with showcases, demos, partnerships, and conversations shaping the future of the global economy. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow ETHConf* X: https://x.com/ethconf Website: https://ethconf.com _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🎟️ Get your early bird tickets for ETHConf 2027: https://ethconf.com/2027#tickets 🎤 View the full ETHConf 2026 Speaker Schedule: https://ethconf.com/schedule _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

ETHGlobal · May 9, 2026

In this workshop, Nik Erzetic, a developer at Flare Network, introduces Flare Smart Accounts and Flare Confidential Compute, two key pieces of Flare's infrastructure. Flare Smart Accounts use account abstraction to allow XRPL users to perform actions on the Flare blockchain without holding any Flare tokens, by bridging encoded instructions from XRPL payment transactions to personal account smart contracts on Flare. The session focuses primarily on Flare Confidential Compute, which leverages Trusted Execution Environments (TEEs) to extend blockchain security to handle private data and computationally heavy tasks. Nik walks through the architecture of TEE extensions on Flare, explaining how developers only need to modify two components — the instruction sender smart contract and the TEE extension code itself. He demos the FC Sign repository as a practical example, covering op types, op commands, and how the TEE securely handles private keys and transaction signing. The workshop concludes with notes on local development tooling for the hackathon and a brief Q&A. 00:00 Introduction 00:25 What Are Flare Smart Accounts 04:02 Account Abstraction and XRPL Integration 06:06 Encoding Custom Instructions 07:00 What Are Trusted Execution Environments (TEEs) 08:18 Flare Confidential Compute Architecture 09:38 Developer Workflow: Smart Contract and TEE Extension 10:36 TEE Proxy and Firewall Security Model 11:06 FC Sign Repository Walkthrough 12:48 Instruction Sender Smart Contract 14:04 Op Types, Op Commands, and Message Encoding 15:52 Go TEE Extension: Handlers and Config 17:32 Local Development Setup for the Hackathon 18:35 AI Skills for Building TEE Extensions 19:07 Q&A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ *ETHGlobal Cannes 2026* This workshop is specifically for ETHGlobal Cannes 2026, a 3-day hackathon held April 3-5 at the Palace of Festivals and Congresses of Cannes, 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 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh5YrcvSj6KSTztLMy58d7d4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow ETHGlobal* X: https://x.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 · May 9, 2026

In this workshop, Judson Bonneville from Gensyn introduces the Agent eXchange Layer (AXL), a decentralized peer-to-peer mesh networking layer that lets agents, tools, and machine learning workloads discover each other and communicate in a fully encrypted environment. AXL is a single Go binary that handles all networking — message routing, NAT traversal, and dual-layer encryption (hop-by-hop TLS plus end-to-end payload encryption) — with no central servers, DNS, port forwarding, or cloud accounts required. Applications interact through just three HTTP endpoints on localhost: send, receive, and topology. Judson explains how nodes join a bootstrap network and find each other via public keys (like phone numbers), enabling fully peer-to-peer communication where intermediary nodes can see transmissions happening but never the content. He covers AXL's support for MCP (exposing named services for structured JSON-RPC responses) and Google's A2A agent protocol for skill discovery. Use cases include agent collaboration, service registries, private data exchange, distributed inference with pipeline parallelism, and any peer-to-peer application. He demos a group chat app where two nodes message each other and share an OpenClaw agent instance, with the agent maintaining conversation context across multiple users — all built with simple HTTP calls to localhost while AXL handles the infrastructure. 00:00 Introduction 00:12 What Is the Agent eXchange Layer (AXL) 00:53 How AXL Works: Peer-to-Peer Mesh Network 01:36 Application Agnostic: Any Language, Any Payload 01:57 Public Keys as Node Identity 02:17 No Central Servers, No Port Forwarding 02:41 Three Core HTTP Endpoints: Send, Receive, Topology 03:22 Dual-Layer Encryption: TLS and End-to-End 04:26 Building with AXL: Send and Receive Pattern 05:15 Use Cases: Agent Collaboration and Chat Rooms 05:40 MCP and A2A Protocol Support 06:32 Getting Started: Clone, Build, Generate Identity 07:12 What You Can Build with AXL 07:29 Agent Collaboration: Decentralized Research 07:48 Service Registry and Tool Marketplace 08:23 Private Data Exchange with Encryption 08:51 Distributed Inference and Pipeline Parallelism 09:17 Packaged Examples: Gossip, Tensor Exchange, A2A 09:58 Live Demo: Peer-to-Peer Group Chat with OpenClaw Agent 11:27 Shared Agent Instance Across Multiple Users 13:45 How the Demo Works Under the Hood 14:23 Resources and Getting Started 14:41 Closing _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🤖 *Open Agents 2026* This workshop is part of Open Agents 2026, an online hackathon held from April 24 to May 6. This async hackathon brings together the world’s most talented Web3 developers, designers, and product builders to advance the Ethereum ecosystem! Watch the full Open Agents 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh6vpKqgVU7bEKyYK0tWfYEQ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow KeeperHub* X: https://x.com/KeeperHubApp ✅ *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 · May 9, 2026

In this workshop, Gathin T from 0G provides a refresher on the 0G stack for hackathon participants and walks through the builder hub. He frames 0G's mission around solving trust vulnerabilities in the agent economy, where centralized AI acts as a black box with no verifiability of inputs, outputs, censorship resistance mechanisms, or actual inferencing costs. 0G addresses this as a Layer 1 EVM-compatible chain purpose-built for on-chain AI with four core components: storage, data availability, compute, and a service marketplace. Gathin T explains key technical updates including the simplified storage SDK with just uploader and downloader functions (no flow contracts needed), recently launched encryption for data uploads, and KV storage achievable through the existing log storage. He covers 0G's verifiable inferencing through TEE environments with ZKML proofs across models like GLM 5.1, DeepSeek 27B, and GPT-OSS, plus on-chain fine-tuning. He dives deeper into ERC-7857 (Agentic IDs), explaining why ERC-721/1155 don't work for AI agents (static metadata, no encrypted model data, no re-keying on transfer) and how the new standard enables encrypted metadata, TEE oracle re-encryption on transfer, and up to 100 delegated users per token. The hackathon offers two $7.5K tracks (framework/tooling and agent builds), and Gathin T introduces the Guild on 0G 2.0 grants program for post-hackathon scaling support. 00:00 Introduction and Workshop Overview 00:58 Speaker Introduction 01:13 The Trust Problem in the Agent Economy 02:13 What Is 0G: Decentralized AI Operating System 02:45 Four Core Pillars Overview 03:29 Why Native Storage for AI Workloads 04:27 Data Availability Layer Explained 04:58 Verifiable Inferencing in TEE Environments 05:30 On-Chain Fine-Tuning and Model Marketplace 06:39 Problems with Centralized AI Today 07:32 Censorship Control and Incentive Structures 08:24 0G Storage SDK: Uploader and Downloader Functions 09:39 How Data Distribution and Merkle Trees Work 10:08 Recently Launched Encryption Feature 10:32 Cost Comparison: AWS S3 vs 0G Storage 11:29 GLM 5.1 and Verifiable Inferencing with ZKML 12:09 DA Throughput, TPS, and Sub-Second Block Finality 12:40 ERC-7857: Why Existing NFT Standards Don't Fit AI 13:34 Agentic ID Features: Re-Encryption and Delegation 13:58 Mainnet Launch and Ecosystem Stats 14:55 Guild on 0G 2.0 Grants Program 15:49 Alignment Nodes and Governance 16:27 Hackathon Tracks: Framework and Agent Builds 17:18 Project Idea Bank and MVP Review Support 17:53 Builder Hub and Telegram Support Channel 18:11 Closing and Office Hours Transition _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🤖 *Open Agents 2026* This workshop is part of Open Agents 2026, an online hackathon held from April 24 to May 6. This async hackathon brings together the world’s most talented Web3 developers, designers, and product builders to advance the Ethereum ecosystem! Watch the full Open Agents 2026 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh6vpKqgVU7bEKyYK0tWfYEQ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Gathin T* X: https://x.com/gathint ✅ *Follow 0G* X: https://x.com/0G_labs ✅ *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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Roger Dingledine

Funding the Commons · Mar 9, 2026

Privacy infrastructure can't be conditional on institutional approval. It has to work for anyone, no permission required. This is the vision Roger Dingledine, co-founder of Tor Project, has been building toward for over two decades. His technology has helped hundreds of thousands of people institutions failed to protect—activists under authoritarian regimes, journalists exposing corruption, people seeking healthcare their governments criminalized. In this conversation, Roger argues that metadata protection—who you talk to, where you go online, the patterns you leave behind—should be infrastructure, not a privilege, that protects people institutions don't. Filmed at Funding the Commons Buenos Aires, November 19, 2025. Learn more at https://www.fundingthecommons.io Relevant Projects Tor Project: https://www.torproject.org Thank You to Our Sponsors Protocol Labs: https://protocol.ai NEAR Foundation: https://near.foundation Stellar Development Foundation: https://stellar.org human.tech by Holonym Foundation: https://human.tech/ Ethereum Ecosystem Support Program: https://esp.ethereum.foundation/ Drips: https://drips.network Octant: https://octant.app Logos: https://logos.co GoodDollar: https://gooddollar.org launchnodes: https://launchnodes.com

ETHGlobal · Nov 9, 2025

Nandit Mehra, founder of Lighthouse, presents on tokenizing the data economy at Pragma. Lighthouse offers permanent, decentralized storage using IPFS and Filecoin, addressing high storage costs, lack of security, and SDK fragmentation. Their platform features an endowment pool for perpetual storage, BLS threshold cryptography for encryption and access control, and a unified SDK. Lighthouse supports onchain logic for data access, enabling NFT and token-gated applications. Notable integrations include Eternal AI, Ocean Protocol, and NFT.Storage. To address AI’s growing data hunger, Lighthouse launched 1MB.io, a platform to store, encrypt, tokenize, and monetize data, leveraging ZKTLS for real-world data verification. 1MB.io enables developers to mint, trade, and monetize data coins, supporting privacy-preserving data sharing and new data marketplaces. The talk highlights the potential for data monetization, deep integration with DePIN, and regulatory support for data portability (GDPR). Lighthouse’s solutions empower developers and users to participate in the evolving, decentralized data economy. 00:00 Introduction 00:33 What is Lighthouse? 01:03 Problems in Decentralized Storage 02:19 Lighthouse Solutions Overview 03:02 Permanent Storage & Endowment Pool 03:59 Encryption & Access Control 05:35 AI & NFT Use Cases (Eternal AI, Ocean Protocol) 06:50 NFT.Storage & Data Preservation 07:48 DePIN Integrations & Web Hash 08:21 Scale & Adoption Metrics 08:54 Data Siloing & AI Data Hunger 09:59 Private & Synthetic Data Opportunities 10:55 Frequent Data Retrieval & 1MB.io Introduction 11:44 Tokenizing & Monetizing Data with 1MB.io 12:44 ZKTLS for Data Verification 13:25 Data Coin Applications & Marketplace 14:01 1MB.io Platform Architecture 15:03 DePIN, Data Monetization, and Market Growth 16:42 Hackathon Ideas & Regulatory Aspects 17:40 Closing Remarks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *Pragma New Delhi* Pragma New Delhi 2025 was held on September 25th at the JW Marriott Hotel in Aerocity New Delhi and was an in-person summit for builders and leaders in the web3 ecosystem. Watch the full Pragma New Delhi YouTube Playlist here: 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 Nandit Mehra X: https://x.com/nanditmehra ✅ Follow Lighthouse X: https://x.com/LighthouseWeb3 ✅ 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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Remi Gai

ETHGlobal · Nov 9, 2025

Remi Gai’s talk, “Deep Dive into Privacy Enhancing Technologies,” explores the critical need for privacy in blockchain and crypto, highlighting that transparency, while useful for verification and compliance, deters adoption due to privacy concerns. Remi explains privacy as a spectrum: from pseudonymity (default, but weak privacy), to confidentiality (hiding amounts), anonymity (hiding participants), and total privacy (hiding all data). He reviews privacy-enhancing technologies: Zero-Knowledge Proofs (ZK), Fully Homomorphic Encryption (FHE), Trusted Execution Environments (TEE), and Multi-Party Computation (MPC), comparing their trade-offs in compliance, composability, and performance. Remi emphasizes the importance of flexible decryption and composability for compliance and business logic, introducing confidential tokens and the Confidential Token Association. He presents Inco, a private compute layer using encryption-based approaches for EVM-compatible blockchains, enabling confidential tokens, private voting, and gaming with minimal developer friction. Remi encourages collaboration to advance privacy as a foundational blockchain primitive. 00:00 Introduction 00:31 The Privacy Problem in Blockchain 01:36 Privacy as a Spectrum 02:26 Pseudonymity and Its Limits 03:13 Confidentiality Use Cases 03:57 Anonymity and Total Privacy 05:12 Choosing the Right Privacy Model 05:31 Compliance and Privacy 05:59 Overview of Privacy Technologies (ZK, FHE, TEE, MPC) 06:23 Fully Homomorphic Encryption (FHE) Explained 09:21 FHE Challenges and Scalability 09:46 Trusted Execution Environments (TEE) 11:31 Commitment vs. Encryption-Based Solutions 12:48 Flexible Decryption and Compliance 13:35 Composability in Privacy Systems 14:50 Confidential Token Ecosystem and Identity 15:47 Confidential Token Association 16:13 Introducing Inco: Private Compute Layer 17:26 Developer Experience and Use Cases 18:17 Private Voting and Randomness 18:56 General Purpose Privacy Applications 19:13 Partnerships and Call to Action 19:37 Conclusion _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *Pragma New Delhi* Pragma New Delhi 2025 was held on September 25th at the JW Marriott Hotel in Aerocity New Delhi and was an in-person summit for builders and leaders in the web3 ecosystem. Watch the full Pragma New Delhi YouTube Playlist here: 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 Remi Gai X: https://x.com/remi_gai ✅ Follow Inco Network X: https://x.com/inconetwork ✅ 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 · Nov 9, 2025

Aakash Taneja from Lighthouse demonstrates how to create a complete data-to-token pipeline using Lighthouse and 1membb.io. He explains how Lighthouse enables permanent, decentralized storage on Filecoin with built-in encryption and on-chain access control, so developers can keep data private while still allowing programmable access from their apps. The walkthrough covers logging in via MetaMask, uploading both public and encrypted files, and using API keys with the JavaScript and Python SDKs to interact with Lighthouse programmatically. Aakash then introduces Data Coins — tokens that represent access rights to valuable private datasets — and shows how to create one using 1membb.io, complete with metadata, images, vesting, and locked asset conditions. He finishes by showcasing a sample app: POP Rewards (Proof of Purchase), which verifies Amazon order history via Reclaim, uploads encrypted proofs to Lighthouse, and mints reward tokens (POP) for users. This flow demonstrates how developers can let users earn tokens from verified private data—a powerful hackathon-ready concept for Web3 data monetization. 00:10 Introduction to Lighthouse & session overview 00:28 What is Lighthouse (Filecoin-based storage with encryption & access control) 00:53 Uploading public and encrypted files 01:18 Logging in via MetaMask and uploading example image 01:41 Encrypted file upload flow and decryption rights 02:05 Creating API keys for SDK integration 02:32 Using the SDK: upload, uploadText, uploadEncrypted 03:09 Encryption features: share file, revoke, set token conditions 03:30 Introducing Data Coins — tokenized access to data 03:48 Creating a Data Coin on 1membb.io (POP Rewards example) 04:27 Configuring metadata, chain, vesting, and locked assets 05:17 Using programmatic scripts to create Data Coins 05:34 Rider bounty challenge: build projects rewarding private data 06:01 Demo app: POP Rewards (Proof of Purchase for Amazon orders) 06:22 Verifying proofs with Reclaim and uploading to Lighthouse 06:47 Minting POP tokens for verified users 07:10 Final summary — monetizing private data with Lighthouse _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 💻 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 Lighthouse X: https://x.com/LighthouseWeb3 ✅ 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 · Nov 9, 2025

Wyatt (Lit Protocol) presents Vincent, a non-custodial framework that lets apps sign on behalf of users without ever holding their private keys. It’s built on Lit’s decentralized key management network: user keys are Programmable Key Pairs (PKPs) sharded across Lit nodes and used via threshold signatures inside trusted execution environments (TEEs). Lit also provides threshold encryption and Lit Actions (JavaScript run inside TEEs) so you can combine programmable signing, secure decryption, and arbitrary Web2/Web3 logic. Users authenticate with something familiar (email, Google, Discord, passkeys, etc.); the auth is bound to their PKP, and signatures are produced by the network—not by the app. Vincent turns that capability into scoped delegation. Users grant a Vincent app specific Abilities (e.g., swap on Uniswap, deposit/withdraw on Morpho, bridge via deBridge) optionally constrained by user-defined Policies (daily spend caps, token allowlists, allocation limits). Delegation is recorded on-chain and can be revoked anytime; apps never see the private key. Each app/user pair gets an isolated agent wallet, so funds and permissions don’t bleed across apps. With this setup, anything that requires a signature can be safely automated—yield rotation, cross-chain rebalancing, scheduled tasks, agentic/A.I. workflows—triggered by on/off-chain events while the user is offline. 00:09 Intro, team, agenda 01:27 Lit Protocol overview: PKPs, TEEs, threshold crypto 03:30 Access control + encryption; Lit Actions (JS in TEEs) 05:44 Network stats & resources 06:33 What is Vincent? Non-custodial, scoped, revocable delegation 08:30 Use cases: yield optimization, cross-chain rebalancing, automation 10:33 Live demo: Vincent Yield (Morpho vault maximizer) 11:39 Consent flow: auth → grant Abilities → on-chain delegation 14:00 Agent wallet per app; deposit & activate strategy 15:36 Abilities & Policies (guardrails like spend limits/allowlists) 18:25 Abilities are JS, composable, can decrypt secrets, call SDKs 19:40 App architectures: — Cross-chain portfolio rebalancer (Uniswap/Jupiter + bridging) — Automated yield farming (Morpho/Lido/GMX) — Agentic Polymarket bettor 23:53 Resources: starter app (DCA), ability/policy kit, docs, Discord 25:40 Q&A: starter kit learning curve; pointers to videos, office hours _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 💻 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 Lit Protocol X: https://x.com/LitProtocol ✅ 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 · Nov 9, 2025

Nandit (with Akash) introduces Lighthouse—a developer platform for permanent, verifiable, and access-controlled storage—and their new product 1mb.io, which lets you launch “data coins” and data agents to reward users (or A.I. agents) for contributing valuable datasets. Lighthouse tackles three pain points: long-term data is expensive/hard to verify, access control on decentralized storage is weak, and the tooling is fragmented. Their solution combines (1) permanent storage funded by an on-chain endowment that pays Filecoin miners so you “pay once, store forever,” (2) threshold-crypto access control where each file has its own key, sharded across 5 nodes with 3-of-5 recovery, and (3) a unified SDK (JS & Python) plus web app/CLI. Files are encrypted client-side before upload, and decryption can be token-gated by on-chain logic (NFT ownership, token balances, timelocks, or pay-to-unlock). Current users include Eternal AI (open-source model hosting), Ocean (data marketplace), large-scale NFT storage, and Webhash (ENS sites served from Lighthouse). On top of this, 1mb.io turns data into an asset. Creators deploy a data coin (Sepolia testnet or mainnets like Base/Polygon/VeChain/World Chain), encrypt & host datasets on Lighthouse, set contribution/reward rules, and optionally trade the coin via a built-in Uniswap integration. Examples: a Ride-Sharing DAO paying Uber users who privately prove ride histories via ZK-TLS (Reclaim/Opacity); Pantry Points paying Zomato users for order data; and Miles, an AI augmentation engine where contributors upload real images/maps, pick conditions (e.g., “heavy rain”), and receive coins while an agent generates synthetic data to enlarge the dataset. The live workshop showed: uploading (plain/encrypted), API key creation, SDK calls for upload, uploadEncrypted, share/revoke access, and token-gating checks; then the data-coin creation flow (naming, chain, vesting, lock asset like USDC). Hackathon guidance: just storing on Lighthouse is good, but to be prize-competitive you should launch a data coin on 1mb.io, encrypt/token-gate access, and use the coin in your protocol’s flows (payments, contributor rewards, gated dashboards). Lighthouse doesn’t supply AI models (bring your own); data verification is up to builders (e.g., ZK proofs), and the market will reward higher-quality coins/datasets. SDKs are framework-agnostic, so you can integrate with OpenAI/agents/MCP, etc. 00:10 What Lighthouse solves (permanent storage, secure access, unified SDK) 02:27 How permanent storage works (on-chain endowment → Filecoin miners) 02:54 Threshold-crypto access control (per-file keys, 3-of-5 shards) 04:36 Token-gated decryption via on-chain logic (NFTs, tokens, timelocks, paywalls) 05:35 Who’s using it (Eternal AI, Ocean, NFT storage, Webhash) 06:38 Why 1mb.io (monetize private/siloed data; reward users/agents) 08:10 Data-coin flow (deploy coin, encrypt/upload, reward contributors, DEX trading) 09:06 Stack view (Lighthouse base + 1mb layer + dataset marketplaces) 10:47 Example verticals (chat history, loyalty, maps; synthetic data generation) 15:03 Live: upload (plain/encrypted), API key, SDK usage 17:31 Networks supported & token-gating docs 17:57 Live: create a data coin (chain, vesting, lock asset) 20:31 Live app: Miles synthetic data agent (rewards per image) 21:52 Live app: Pantry Points (ZK-TLS + Zomato orders → rewards) 23:22 Q&A: how to qualify for bounties (launch a data coin, integrate gating/payments) 27:53 AI model sourcing (BYO), data verification (ZK proofs), framework compatibility _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 💻 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 Lighthouse X: https://x.com/LighthouseWeb3 ✅ 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

Kevin Jones

ETHGlobal · Nov 9, 2025

Kevin Jones from Edge & Node introduces The Graph as a decentralized indexing layer for blockchain data, emphasizing its evolution beyond subgraphs to include token APIs, MCP servers, Substreams, and Hypergraph. For the hackathon, developers are encouraged to build with these newer tools to qualify for bounties. He explains how Substreams enables real-time blockchain data streaming to external databases, while Hypergraph allows developers to build knowledge graph-based applications with private, encrypted, and verifiable data. The platform integrates Geo Connect for authentication, uses React with Next.js or Vite for front-end scaffolding, and introduces GRC20, the specification for structuring and publishing data to the decentralized knowledge layer called Geo. The demo walks through how developers can create public and private spaces, manage entities, and publish encrypted or public data using the Hypergraph framework. Kevin highlights the role of TypeSync, a tool that visually manages schema types and relationships within projects, and demonstrates the end-to-end process of authenticating, creating entities, syncing schemas, and publishing data. Example applications include DApp registries, governance platforms, and collaborative tools where users can maintain both private and public datasets. Ultimately, Hypergraph provides a full-stack, privacy-first framework for decentralized knowledge sharing, opening new pathways for structured, reusable, and encrypted blockchain data. 00:02 – Introduction & Overview of The Graph 00:47 – Decentralized Indexing & Data Access 01:12 – Token APIs, MCP Servers, and Substreams 02:16 – Hackathon Bounties & Categories 02:39 – Introduction to Hypergraph Framework 04:06 – Private Data & Local-First Encryption 05:16 – Full-Stack Setup with React, Vite, and Next.js 05:44 – Knowledge Graphs Explained (Entities, Relations, Spaces) 07:10 – Public vs Private Spaces in Hypergraph 08:02 – Sync Server & Geo Connect Architecture 08:55 – Code Example: Entities and Relations 10:19 – Publishing to Knowledge Graph (Public/Private Data) 10:40 – Example Use Cases: Crypto Projects, Governance, Registries 11:23 – Demo: Setting Up a Hypergraph Project 12:10 – Scaffolding with NPX & Framework Options 13:16 – Using TypeSync for Schema Management 15:16 – Creating Private & Public Spaces 17:29 – Exploring Knowledge Graph Data 18:05 – Managing Schema and Types in Code 19:43 – Updating and Syncing Entities 20:04 – Publishing Data to Sync Server and Knowledge Graph _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *ETHGlobal New Delhi* This workshop is specifically for ETHGlobal New Delhi, a 3-day hackathon held September 19-21 at the India International Convention & Expo Centre, 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 New Delhi 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh7zCFW3hBqatZ18rQaYeEJL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow The Graph* X: https://x.com/graphprotocol ✅ *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 · Nov 9, 2025

This workshop covers the Filecoin Onchain Cloud vision and two partner offerings—Lighthouse and Akave—for builders who need decentralized storage that feels like modern cloud. Filecoin’s stack is evolving from IPFS and cold storage to a programmable “onchain cloud” spanning storage, retrieval (Filecoin Beam CDN), compute and AI infra, and DePIN, all accessible from a JavaScript/TypeScript client SDK (Synapse). Payments are stabilized via USDFC (a Filecoin-native stablecoin), with optional native FIL, and storage proofs remain backed by Filecoin’s proof layer. Developers can use warm object storage, stable pricing, and verifiable CIDs, and can request early access ahead of the official launch at Devconnect. Lighthouse presents “pay once, store forever” using an endowment pool tied to DeFi yields that perpetually renews Filecoin deals. Its SDK unifies upload, retrieval, and BLS threshold encryption–based access control, enabling token-gated data and private sharing. A new feature, DataCoin (1mb.io), lets creators tokenize datasets and build apps that share revenue with data generators. Akave targets adoption with S3-compatible endpoints and zero egress fees: migrate with rclone, keep existing code, and get client-side encryption plus Reed–Solomon erasure coding across decentralized nodes for redundancy and recovery. The team outlines hackathon bounties and tracks spanning AI/ML datasets and checkpoints, lakehouses, cross-cloud analytics, DePIN compute, and immutable backup. 00:00 – Bounties overview and why decentralized storage now 01:05 – Filecoin Onchain Cloud: storage, retrieval, compute/AI, DePIN 02:41 – From IPFS and cold storage to FVM and L2-plus vision 04:07 – Current capacity, usage, and ecosystem stats 04:56 – Architecture: client SDK, service layer, payment layer (USDFC), proofs 05:59 – Warm object storage and Filecoin Beam CDN 06:21 – Stablecoin payments vs native payments 06:45 – Verifiable CIDs and content addressing example 07:10 – Liquidity, TVL, and stability pool metrics 07:36 – Synapse SDK: one-stop dev entry, ideas and early access 08:38 – Launch timing and Devconnect demo plans 08:59 – Lighthouse intro: Filecoin/IPFS, pay-once store-forever 10:06 – Endowment pool model and perpetual renewals 11:07 – Access control via BLS threshold crypto, token gating 12:09 – Data monetization with DataCoin (1mb.io) and docs 13:37 – Creating a DataCoin and app integration patterns 14:56 – Akave focus on enterprise-friendly adoption 15:18 – S3-compatible endpoints, zero egress, versioned immutability 16:43 – Migration with rclone; high-level architecture 17:37 – Client-side encryption and 32-MB chunking 17:59 – Reed–Solomon erasure coding, redundancy, recovery 18:59 – Hackathon tracks: AI/ML datasets, checkpoints, lakehouse, DePIN compute, backups 20:04 – Getting Akave credentials and support channels _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *ETHGlobal New Delhi* This workshop is specifically for ETHGlobal New Delhi, a 3-day hackathon held September 19-21 at the India International Convention & Expo Centre, 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 New Delhi 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh7zCFW3hBqatZ18rQaYeEJL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Filecoin* X: https://x.com/Filecoin ✅ *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

Kartik Talwar

ETHGlobal · Oct 9, 2025

Welcome to Pragma San Francisco 2024, presented by ETHGlobal! In this opening keynote, ETHGlobal co-founder Kartik Talwar introduces a two-day single-track Web3 summit focused on accessibility, pragmatism, and the future of blockchain. Discover what makes Pragma unique: no parallel sessions, no fluff—just high-signal conversations with founders, protocol builders, and decision-makers shaping Ethereum and the broader crypto ecosystem. Kartik walks through the agenda, introduces new primitives like NFC-enabled Ethereum wristbands, the Pragma SF Pack, and shares how attendees can network using on-chain tools. Plus, get an overview of upcoming talks on AI, ZK, rollups, DePIN, Bitcoin L2s, programmable wallets, fully homomorphic encryption, and more. 00:00 Welcome to Pragma SF 2024 00:20 Why this Pragma is special (2-day format) 00:53 What "pragma" means in Web3 01:27 Making Web3 more accessible 01:59 Single-track, no side stages 02:32 Founder-only, future-focused talks 03:01 Mostly non-technical, high-signal content 03:33 25 talks, 5 interviews over 2 days 04:03 Where to find the full agenda 04:30 Attendees from 34 countries 04:57 Thanking 11 partner projects 05:30 Shoutout to Pragma SF Pack participants 05:58 Blending on-chain and off-chain experiences 06:26 Ethereum NFC wristbands explained 07:00 Wristbands = on-chain identities 07:27 Networking with wristbands 07:55 Wristbands also work for the hackathon 08:34 Day 1 agenda overview begins 08:34 Talk: Using AI to secure dApps 08:52 Talk: The future of real world assets 09:05 Talk: The future of consumer crypto apps 09:16 Talk: Privacy-preserving smart contracts 09:32 Talk: Rollup fragmentation and TEEs 09:45 Talk: Programmable transportation with DePIN 09:59 Talk: DeFi accessibility for TradFi 10:12 Talk: Yield innovations in Web3 10:22 Talk: Simplifying DeFi trades via 0x 10:34 Talk: Bitcoin L2s and EVM integration 10:42 Talk: Mobile crypto payments with Vora 10:52 Talk: Programmable wallets via Circle 11:04 Talk: Should you build your own rollup? 11:17 Talk: FHE on the EVM and crypto privacy 11:35 Talk: General purpose vs app-specific rollups 11:47 Schedule available at ethglobal.com/pragma _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *Pragma San Francisco* Pragma San Francisco 2024 was a special gathering of founders and builders that took place October 16th and 17th at The Contemporary Jewish Museum in San Francisco, CA. Pragma San Francisco 2024 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma San Francisco playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4LcwDpGf_itZrAu7XRNb07&si=3x3y9J3avgNTITUe 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 Kartik Talwar* X: https://x.com/therealkartik Warpcast: https://warpcast.com/kartik ✅ *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 9, 2025

Join Guy Itzhaki, CEO of Fhenix, at Pragma San Francisco 2024 as he explores the transformative potential of Fully Homomorphic Encryption (FHE) in blockchain technology. Discover how FHE rollups and co-processors enhance blockchain privacy and scalability by enabling confidential smart contracts and encrypted computation. Learn about the advantages of FHE compared to traditional privacy technologies like ZK proofs, MPC, and TEEs, and explore real-world applications including confidential transactions, sealed-bid auctions, decentralized identity, credit scoring, and confidential AI. 00:00 Introduction: Guy Itzhaki from Fhenix on FHE 00:52 Understanding Blockchain & Lack of Privacy 01:26 What Privacy Means: Anonymity vs. Confidentiality 02:01 Confidential Smart Contracts Explained 03:12 Use Case Example: Sealed-Bid Auctions 04:25 Limitations of ZK Proofs for Confidentiality 04:59 MPC: Benefits, Limitations, and Use Cases 05:34 Issues with Trusted Execution Environments (TEEs) 06:07 Introducing Fully Homomorphic Encryption (FHE) 06:42 How FHE Enables Computation on Encrypted Data 07:21 Overcoming Complexity: Easy Development with FHE 07:56 Improving FHE Performance & Hardware Optimization 08:33 What is an FHE Rollup & How Does It Work? 09:48 Implementing FHE Co-Processors for L1, L2 & L3 Chains 11:07 Step-by-Step: How FHE Co-Processors Function 11:42 Real-World Blockchain Applications Using FHE 12:57 Decentralized Identity, Credit Scoring & Lending 13:33 Confidential AI: Intersection of AI & Blockchain 14:08 How AI Can Improve Blockchain Applications 14:43 Decentralized AI Models & Data Privacy with FHE 15:17 Future of AI: Agent-to-Agent Transactions 15:47 Ensuring Data Authenticity & Privacy with Blockchain 16:24 Conclusion & Resources to Learn More about FHE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *Pragma San Francisco* Pragma San Francisco 2024 was a special gathering of founders and builders that took place October 16th and 17th at The Contemporary Jewish Museum in San Francisco, CA. Pragma San Francisco 2024 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma San Francisco playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4LcwDpGf_itZrAu7XRNb07&si=3x3y9J3avgNTITUe 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 Guy Itzhaki* X: https://x.com/GuyItzh ✅ *Follow Fhenix* X: https://x.com/fhenixio ✅ *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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

David Sneider

ETHGlobal · Oct 9, 2025

Discover how Lit Protocol is redefining the management of secrets and identities on-chain with decentralized cryptographic solutions. In this insightful talk from Pragma San Francisco 2025, David Sneider, founder of Lit Protocol, explores programmable secret networks using threshold cryptography, secure hardware (TEE), and multi-party computation. Learn how decentralized secret management enhances interoperability across blockchains, platforms, and AI systems, empowering individuals with secure, privacy-preserving control over their data, identity, and assets. 00:00 Introduction: David Sneider on Decentralized Secrets 00:46 Agenda: Problems, Solutions, Implementations & Future 01:24 The Big Problem: Fragmented Digital Systems 02:01 Why Secrets Are Key for Digital Interoperability 02:37 Lit Protocol: Decentralized Secret Management Overview 03:13 Technical Architecture: Secure Hardware & TEEs 03:51 Multi-Party Computation & Threshold Cryptography 04:56 Cross-Platform Interoperability Using Lit Protocol 06:05 Lit as a New Primitive: Smart Contract Comparison 06:42 Case Study: Verify & On-chain IP Licensing 07:54 Identity-Based Encryption Explained (Verify Example) 09:00 Case Study: Nebula & On-chain Life Insurance 10:10 Privacy-Preserving Risk Scores for Insurance 10:49 Healthcare Data & Privacy in Web3 11:28 Case Study: Genius Terminal & Cross-chain Swaps 12:37 Real-time Cross-chain Trading with Programmable Wallets 13:11 The Future of AI & Decentralized Secret Management 13:49 AGI & the Need for Decentralized Data Control 14:22 Vitalik's Defensive Techno-Optimism Framework 14:59 Empowering Users with AI & Decentralized Data 15:34 Opportunities for Developers with Lit Protocol 16:11 Closing Remarks & Invitation to Innovate Together _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *Pragma San Francisco* Pragma San Francisco 2024 was a special gathering of founders and builders that took place October 16th and 17th at The Contemporary Jewish Museum in San Francisco, CA. Pragma San Francisco 2024 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma San Francisco playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4LcwDpGf_itZrAu7XRNb07&si=3x3y9J3avgNTITUe 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 David Sneider* X: https://x.com/davidlsneider ✅ *Follow Lit Protocol* X: https://x.com/LitProtocol ✅ *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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Charles Guillemet

ETHGlobal · Oct 9, 2025

Discover how Ledger is expanding the possibilities of self-custody, privacy, and encryption with its new Key Ring Protocol. In this talk, Charles Guillemet, CTO of Ledger, explains how the protocol empowers users to encrypt and share data securely—without sacrificing usability or sovereignty. Learn how confidentiality can finally be added to the benefits of decentralized consensus, how Ledger Live synchronizes user data while keeping it private, and why true self-custody must include control over your digital information. Explore real-world scenarios like end-to-end encrypted messaging and private photo sharing, and find out how developers can build privacy-focused apps on top of this open protocol. Topics Covered • Self-custody and the importance of permissionless blockchain technology • Why privacy and confidentiality are the missing pieces of most blockchains • How Ledger’s Key Ring Protocol introduces encryption key management • Synchronizing Ledger Live data across devices without compromising user ownership • Future potential for secure messaging, private file storage, and more • Developer call to action for building new sovereign applications 00:00 Introduction & Context 00:54 Why Blockchain Self-Custody Matters 02:12 Decentralized Consensus & Censorship Resistance 04:07 Missing Confidentiality in Most Blockchains 06:09 Importance of Privacy & Sovereign Data 08:02 Key Ring Protocol Overview 10:45 Ledger Live Sync & Encrypted Data 12:30 Real-World Use Cases: Messaging & Photos 14:52 Developer Call to Action 15:29 Conclusion & Closing Words _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🎤 *Pragma Bankgkok* Pragma Bangkok 2024 closed out a year of exceptional Pragma events held around the world, and offered the global Web3 community a chance to hear from founders and builders as they reflect on the past, and look to the future of Web3. Pragma Bangkok 2024 was held on November 14th at the Hyatt Regency Bangkok Sukhumvit in Bangkok, Thailand. Watch the full YouTube Playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4JNkhnsv5F95OqxT_IjCEl&si=6Tv3CvB6vrQIIjBA ETHGlobal's Pragma series, which began in Tokyo in the spring of 2023, has been fostering a curated, global community of individuals who deeply care about web3. You can learn more about Pragma and upcoming events in the series here: https://ethglobal.com/pragma _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ Follow Charles Guillemet X: https://x.com/P3b7_ ✅ Follow Ledger X: https://x.com/ledger Website: https://shop.ledger.com ✅ Follow Kartik Talwar X: https://x.com/therealkartik Warpcast: https://warpcast.com/kartik ✅ 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 9, 2025

Protect your AI agent data with Nillion's SecretVault—a fully decentralized storage solution that easily secures and encrypts sensitive information. In this workshop, Steph Orpilla, Head of DevRel at Nillion, demonstrates how to create, store, and retrieve private data using Nil DB Nodes, Nillion SecretVault Wrappers, and Nillion Query Language (nql). Whether you’re building AI agent swarm memory, encrypting user PII, or sharing secure off-chain context, this quickstart covers the entire flow—from schema creation to encrypted record reads. Learn how to integrate SecretVault into your hackathon projects with minimal overhead, all via simple REST APIs and user-friendly libraries. 00:00 Introduction & Prizes 00:07 Overview: Nillion SecretVault 01:23 Use Cases & Encryption Flow 02:31 Quickstart: Installing the Wrappers 03:40 Building & Posting Schemas 05:06 Writing Encrypted Data to Nodes 06:40 Reading & Decrypting Records 08:01 Implementation Tips & Best Practices 09:18 Registering an Organization 10:41 Joining the Community & Final Remarks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🤖 *Agentic Ethereum* Agentic Ethereum is an online, async hackathon that runs from Jan. 31 to Feb. 12, 2025. With over $175,000 USD in prizes, Agentic Ethereum is a great way to dive into the world of autonomous AI agents and explore how they can revolutionize projects on Ethereum. Start the year with groundbreaking innovation! Watch the full playlist: https://youtube.com/playlist?list=PLXzKMXK2aHh7jxP_flgRf5nZ_WDgFpBy3&si=RZozbd9C5KrG6Bf3 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Nillion* X: https://x.com/nillionnetwork Website: https://nillion.com ✅ *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 9, 2025

Abhay Upadhyay, software engineer at Akave, explores how to hack the data layer for AI using Akave and Filecoin in this ETHGlobal workshop. Learn about decentralized storage concepts, how Filecoin's incentive-based storage complements Akave's hot storage layer, and how to interact with data agentically using Akave 03's S3-compatible API. Discover practical demos of storing/retrieving files through Akave 03 and integrating local AI models with on-chain data via Model Context Protocol (MCP). Perfect for builders at ETHGlobal hackathons. 00:00 - Introduction to Akave & Filecoin for AI Data 00:43 - Why Decentralized Storage Matters for AI 01:14 - Benefits of Decentralized Storage 01:41 - IPFS vs Filecoin: Key Differences 02:56 - How Akave Complements Filecoin Storage 03:51 - Akave Hot Storage vs Filecoin Warm Storage 04:17 - Akave 03: S3-Compatible Decentralized Storage 05:37 - How Akave Secures Data with Erasure Coding 06:34 - Akave 03 Features and Benefits 07:02 - Live Demo: Akave 03 S3 CLI Setup 08:20 - Creating Buckets & Uploading Files Demo 10:16 - Downloading Files from Akave 03 11:26 - Model Context Protocol (MCP) with Local AI 12:58 - Running MCP Server with Akave Credentials 14:23 - AI Agent Interacting with On-Chain Data _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇨🇿 *ETHGlobal Prague* This workshop is specifically for ETHGlobal Prague, a 3-day hackathon held May 30 - June 1 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! Watch the full ETHGlobal Prague 2025 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh5Vv-ZobDU2YMWekDFYvOqd&si=SoQ5O2TOAK8RkYf- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Paul Brody

ETHGlobal · Oct 9, 2025

In this talk at Pragma Prague 2025, Paul Brody from EY dives into the critical role of privacy in enterprise blockchain adoption. He explains why business privacy is more complex than consumer privacy, covering regulatory challenges, zero-knowledge proofs (ZKPs), and scalable solutions like EY’s Nightfall and Starlight. Brody also discusses the future of privacy tech, compliance strategies, and why Ethereum is the backbone for enterprise blockchain. A must-watch for anyone interested in crypto, supply chain, DeFi, and enterprise blockchain solutions. 00:00 Introduction to Paul Brody and business privacy 00:49 Why business privacy is harder than consumer privacy 01:15 The value of privacy in enterprise coordination 02:12 How modern supply chains complicate coordination 03:12 Tokenization and smart contracts for business processes 04:17 Two types of privacy: Money vs. agreement terms 05:14 EY’s Nightfall (ZK rollup) and Starlight (private smart contracts) 06:18 Five challenges in enterprise privacy solutions 07:56 Regulatory compliance and confidentiality in privacy tech 09:25 Key requirements for enterprise privacy solutions 10:33 Privacy challenges in supply chain traceability 11:06 Four major privacy tech choices (ZKPs, MPC, HE, TEEs) 12:10 Why EY chose zero-knowledge proofs (ZKPs) 13:25 Evolution of Nightfall from prototype to production 14:03 Early high-value use cases for private transactions 14:33 Smart contracts for enforcing business agreements 15:31 Future of scalable, general-purpose privacy solutions 16:11 Performance improvements in ZKP technology 17:15 Why EY is an Ethereum maxi firm 18:25 Q&A: Other Big Four firms entering blockchain _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇨🇿 *Pragma Prague* Pragma Prague 2025 was held on May 29th at Holešovice Market in Prague, Czech Republic and was an in-person summit for builders and leaders in the web3 ecosystem. This event was in collaboration with ETH Prague. Watch the full Pragma Prague YouTube Playlist here: 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 Paul Brody X: https://x.com/pbrody ✅ Follow Kartik Talwar X: https://x.com/TheRealKartik ✅ 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 9, 2025

Yaniv Tal, founder of The Graph, discusses building consumer apps for a user-owned, privacy-first Web3. He highlights the dominance of Web2 apps, emphasizing the need for user freedom and data ownership in Web3. Yaniv introduces knowledge graphs as a core primitive for interoperable, composable data across applications, crucial for both public and private data. He unveils GRC20, a new standard for interoperable knowledge graphs, and Hyperraph, a local-first framework enabling real-time, privacy-preserving, and interoperable Web3 consumer apps. Hyperraph leverages CRDTs and end-to-end encryption for private data, and GRC20/IPFS for public data, allowing developers to build open, interconnected apps on Ethereum. Yaniv demonstrates building a fashion app using these tools, showcasing rapid development and collaboration. He encourages developers to join the ETHGlobal hackathon, aiming to expand Ethereum’s ecosystem beyond DeFi to diverse, user-empowering applications. 00:00 Introduction 00:33 Yaniv Tal’s Background & Motivation 01:19 Web2 vs Web3 Consumer Apps 02:13 The Value of User Freedom & Data Ownership 03:14 Introduction to Knowledge Graphs 04:13 Open, Interconnected Knowledge Graphs 05:12 Privacy, Permissions, and Interoperability 06:05 GRC20: Standard for Knowledge Graphs 06:43 The Role of Frameworks in App Growth 07:47 Announcing Hyperraph: Local-First Web3 Framework 08:39 Privacy, Real-Time Sync, and Data Interoperability 09:03 Building Apps with Hyperraph (Demo) 11:00 Organizing Public Knowledge & Data Sets 11:34 Private Data Spaces & Collaboration 12:47 Expanding App Possibilities on Ethereum 13:15 Hyperraph Team & Hackathon Invitation 13:59 Call to Action & Closing Remarks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇫🇷 *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 Yaniv Tal X: https://x.com/yanivgraph ✅ 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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Illia Polosukhin, Kartik Talwar

ETHGlobal · Oct 9, 2025

In this fireside chat at Pragma Cannes 2025, Kartik Talwar and Illia Polosukhin (Near Protocol) explore the intersection of crypto and AI, focusing on decentralization, privacy, and autonomous agents. They discuss how AI can simplify user experiences in crypto, enabling intent-based actions and predictive interfaces. Key challenges include reliability, data privacy, trust, and sovereignty, especially when AI models are controlled by centralized entities. Illia highlights advances in confidential computing (Nvidia Hopper, Intel TDX) that enable secure, verifiable AI computation with minimal overhead, paving the way for decentralized, unstoppable autonomous agents. They delve into integrating AI agents with blockchain via secure enclaves, programmable encryption (chain signatures), and intent-based smart contracts for payments and work. The conversation covers agent communication protocols (AITP), the evolution of user interfaces towards AI-driven, just-in-time experiences, and the broader vision of merging web3 and AI for secure, user-centric applications. 00:00 Introduction 00:46 Overlap of Crypto and AI 01:51 AI-Driven User Experiences 03:09 Reliability and Trust Issues in AI 04:08 Sovereignty and Centralization Risks 05:18 Blockchain Solutions for AI Challenges 06:28 Confidential Computing Advances 07:36 Integrating AI with Blockchain 08:31 Autonomous Agents and Decentralized Cloud 10:07 Legal Contracts, Payments, and Real-World Integration 11:21 Blockchain Network Evolution 12:39 Confidential Compute and Data Privacy 13:31 Programmable Encryption and Chain Signatures 14:38 Personal Memory Boxes and Secure AI Models 15:07 Intents for Payments and Contracts 16:46 Building AI Agents: Near vs. General SDKs 17:44 Agent Communication Protocols (AITP) 18:45 The Future of Interfaces: AI-Driven Experiences 19:44 Closing Remarks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇫🇷 *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 Illia Polosukhin X: https://x.com/ilblackdragon ✅ Follow NEAR X: https://x.com/NEARProtocol ✅ 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 9, 2025

Marcus Rein, Senior Developer Relations at Edge & Node, introduces building on The Graph and Hypergraph at ETH Global. The Graph is a decentralized indexing and querying protocol for blockchain data, featuring 100+ indexers. He outlines $10,000 in hackathon prizes across tracks for building with Token API, Substreams, Subgraphs, Hypergraph, and the GRC20TS library. Hypergraph is a local-first, full-stack Web3 app framework leveraging knowledge graphs for composable, privacy-enabled data. Key features include public/private spaces, end-to-end encryption, standardized IDs, and real-time sync via a sync server. Marcus demos CRUD operations on entities in Hypergraph, showing schema definition, mapping, and front-end integration. He explains how Hypergraph enables collaborative, composable apps with both blockchain and non-financial data, and answers questions on privacy, authentication, data sync, decentralization, and verifiability. He encourages participants to explore use cases like crypto directories, DApp registries, and DAO governance explorers. 00:00 Introduction 00:34 Overview of The Graph and Prizes 01:16 Prize Tracks and GRC20TS Library 02:36 Hypergraph Overview and Features 04:43 Knowledge Graphs Explained 06:14 Spaces: Public and Private Data 07:37 Sync Server and Composability 08:31 Hypergraph Live Demo: Setup 09:25 Exploring Public Spaces and Entities 10:31 Schema, Mapping, and Data Integration 13:49 Adding and Composing Data 14:05 Creating and Publishing Entities 15:20 Managing Private and Public Spaces 16:37 CRUD Operations in Hypergraph 17:52 Composable Apps and Use Cases 18:27 Example Ideas and Docs 19:10 Q&A: Privacy, Sync, and Authentication 21:04 Smart Contracts, Permissions, and Data Storage 22:25 Sync Server, Decentralization, and Verifiability 24:25 Exploring Spaces and Datasets 25:19 Censorship, IPFS, and Final Q&A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *ETHGlobal New York* This workshop is specifically for ETHGlobal New York, a 3-day hackathon held August 15-17, 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 New York 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh4Xze0ZeSWCSGsw25clPpvZ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow The Graph* X: https://x.com/graphprotocol ✅ *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 9, 2025

A three-part workshop on building the data layer for AI across Filecoin-based services. First, Synapse SDK: a full-stack Next.js demo that handles balances, USDFC approvals, on-chain payments, hot storage, and dataset creation—upload a file, fund allowance (approve → transfer → lock), and retrieve via CID. Second, Akave 0³ (S3-compatible) storage: AWS-style buckets, client-side encryption, immutable/versioned objects by default, Reed–Solomon erasure coding, and hackathon tracks (datasets, analytics, backup/recovery). Third, Lighthouse: permanent, encrypted storage with access control; upload via UI/JS SDK, share/revoke conditions; then mint “data coins” (e.g., POP) and reward users. Sample app: prove Amazon order history with Reclaim, verify server-side, store on Lighthouse, and mint POP tokens to users. 00:02 Intro & agenda: Synapse SDK, Akave 0³, Lighthouse 00:31 Prereqs: Filecoin Calibration FIL & USDFC faucets 00:54 Synapse FS-Upload demo app (Next.js full stack) 01:38 Synapse SDK overview & tutorial repo 02:10 Code tour: balances, payments, uploads, dataset hooks 03:08 Payment flow: approve USDFC → transfer → lock allowance 03:35 Running the app; what each tx does 03:59 Checking balances, rate allowance; deposit/increase allowance 04:23 Upload flow: pick file → init storage → connect provider → create dataset 04:41 Confirm on-chain tx; view dataset (CID) & download/retrieve 04:56 Store any data on Filecoin via Synapse SDK 05:21 Akave 0³: what it is (S3-compatible, cheaper, immutable) 05:54 Architecture: SDK → immutable ledger → distributed Akave nodes 06:57 Demo with AWS CLI (S3 endpoint set to 0³ RC2) 08:08 Create bucket; upload file; list objects 09:12 Versioning enabled by default; re-upload to create v2 10:14 Client-side encryption & Reed–Solomon erasure coding 11:28 Hackathon prizes & tracks (datasets, analytics, backup/recovery) 12:30 Starter guide & booth support 12:50 Lighthouse intro: permanent, encrypted, access-controlled storage 13:46 Log in & public upload via dashboard (CID/gateway) 14:12 Encrypted upload (sign, encrypt, then IPFS) 14:36 Create API key for programmatic use 14:58 Docs tour: upload (JS/API/CLI), uploadEncrypted, share/revoke, token conditions 15:58 Making data valuable: “data coins” as tickets for private data 16:18 Create a data coin on 1membb.io (POP example) 17:19 Chain, vesting, and locking assets; submit & programmatic script 18:05 Hackathon ask: users upload private data, get rewarded 18:31 Sample app (POP Rewards): prove Amazon orders with Reclaim 19:06 Flow: user proof → server verifies → upload to Lighthouse → mint POP 19:26 Wrap-up: tokenize datasets, attach value, earn from your project _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *ETHGlobal New Delhi* This workshop is specifically for ETHGlobal New Delhi, a 3-day hackathon held September 19-21 at the India International Convention & Expo Centre, 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 New Delhi 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh7zCFW3hBqatZ18rQaYeEJL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Filecoin* X: https://x.com/Filecoin ✅ *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 9, 2024

What happens when rollups sacrifice MEV for decentralization? In this fireside chat at Pragma Istanbul 2023, Ethereum Foundation’s Justin Drake moderates a deep dive into shared sequencing, based rollups, and the future of MEV between Tomasz Stanczak (Nethermind), Josh Bowen (Astria), Daniel Wang (Taiko), and Mark Tyneway (Optimism). This panel explores the emerging design space of shared sequencing, cross-domain MEV, the trade-offs of based rollups, and how sequencing layers and cryptographic tools like encrypted mempools will shape Ethereum’s scaling and UX. Topics include network effects, MEV minimization, cross-rollup composability, decentralized sequencing, liquidity flows, and game-theoretic governance between rollups and sequencers. Whether you're building a rollup, researching sequencing architecture, or trying to understand MEV economics, this conversation is an essential guide to the rapidly evolving world of modular Ethereum and shared infrastructure. 00:00 Intro: Key takeaways from previous panel 00:44 Homogeneous vs heterogeneous shared sequencing 01:57 Long-term consolidation vs short-term experimentation 02:43 External vs based sequencers explained 04:13 Panelist intros and extra takeaways 05:46 Challenges in open collaboration across L2s 08:14 Rethinking L1-L2 relationships for cross-chain 09:30 Taiko's minimalist approach and booster rollups 10:11 What is a based rollup and the MEV Gambit? 11:25 How to split cross-domain MEV fairly? 13:05 Governance complexity with many rollups 14:54 Power dynamics in sequencer-rollup negotiations 15:51 Simple calculations, complex MEV splits 17:32 Lack of global price reference in MEV splits 19:07 Social scalability limits for shared sequencers 20:20 Business logic vs technical MEV distribution 22:08 When giving up MEV makes sense 23:38 Data limitations and oracle manipulation 24:19 Can MEV go to zero over time? 26:16 DeFi on-chain reduces arbitrage MEV 28:03 MEV shifts from proposers to other actors 29:59 Unsophisticated flow and persistent MEV 31:04 Do encrypted mempools just shift MEV operators? 32:57 Delay encryption and decentralized mempools 34:04 Injection MEV still survives encryption 35:15 Sandwich protection in decentralized sequencing 36:44 Suave and trusted RPCs for user flow 38:10 What decentralized sequencing really means 39:13 Permissionless vs permissioned sequencer sets 40:29 Using governance and reputation in sequencing 41:05 Wrap-up and closing remarks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇹🇷 *Pragma Istanbul* The sixth edition of Pragma took place in Istanbul in November 2023 with a curated series of high-quality talks that sparked thought and discussion. Pragma Istanbul 2023 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma Istanbul 2023 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4rHV1H4J7y0wDok4bIS17t&si=lb8ttkU1HS2tpnUP 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/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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Remi Gai

ETHGlobal · Oct 9, 2024

n this deep-dive panel from Pragma India 2023, ETHGlobal’s Kartik Talwar sits down with leading Web3 founders—Kautuk Kundan (Stackr), Danilo Kim (Kakarot ZK-EVM), and Remi Gai (Inco Network)—for an unfiltered discussion on building practical applications with zero-knowledge proofs, fully homomorphic encryption (FHE), and next-gen micro rollups. This conversation demystifies how cryptographic tools like ZK-SNARKs, ZK-STARKs, Cairo, FHE, and micro rollups are powering the future of privacy, scalability, and composability in Web3. You’ll learn why performance, accessibility, and UX matter just as much as security, how new architectures like Kakarot and Stackr are changing the developer landscape, and what trade-offs exist when balancing decentralization with real-world usability. 00:00 Panel intro: ZK, FHE, and rollup builders 00:44 What is Inco Network? Confidential EVM with FHE 01:18 What is Stackr? Micro rollup framework explained 01:52 What is Kakarot? EVM written in Cairo 02:31 What is fully homomorphic encryption (FHE)? 03:36 Real-world FHE use cases: games, DeFi, coordination 05:10 ZK vs FHE: key differences in computation 06:43 What are micro rollups and why they matter 07:41 Example: token transfer via micro rollup 08:40 Building rollups in any general-purpose language 09:11 Why Kakarot chose Cairo: speed, safety, and trade-offs 10:25 Cairo advantages over raw circuits 12:20 Why build an EVM in Cairo? Compatibility benefits 13:28 Kakarot compatibility and remaining limitations 14:41 Why Inco chose EVM for encrypted smart contracts 15:17 Stackr’s broader vision: web2-like UX in web3 16:54 Real-world dapps without Solidity: rideshare, ticketing 18:45 Stackr’s trust model and verification layers 21:05 Do we need powerful provers? Hardware and costs 22:11 FHE scaling with FPGA and validator roadmap 23:40 ZK parallel proving, mobile-friendly validation 24:42 The future of cryptography and consumer devices 25:42 Advice for hackers building ZK apps at ETHIndia 26:46 How to approach ZK hackathon projects 28:23 Use libraries, avoid reinventing the wheel 28:50 Hackathons = the birthplace of innovation 29:18 Try FHE with Inco Network during ETHIndia 29:46 Final thoughts and closing thanks _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇮🇳 *Pragma India* The final Pragma of the year took place in Bengaluru India in December 2023 with a curated series of high-quality talks that sparked thought and discussion. Pragma India 2023 was an opportunity discuss the future of web3 and reflect on the past. Watch the full Pragma India 2023 playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4rHV1H4J7y0wDok4bIS17t&si=lb8ttkU1HS2tpnUP 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/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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Remi Gai

ETHGlobal · Oct 9, 2024

Dive into the cutting edge of cryptography with this Pragma Denver 2024 panel on Emergency Privacy Enhancing Technologies (PETs), featuring top innovators from Nillion, Sunscreen, Inco Network, and Zama. Moderated by ETHGlobal’s Kartik Talwar, this discussion explores the latest breakthroughs in Fully Homomorphic Encryption (FHE), Multi-Party Computation (MPC), encrypted AI, confidential smart contracts, and EVM-compatible PETs. Learn about real-world applications like private payments, confidential voting, onchain gaming, dark pools, and privacy-preserving AI. Whether you're a cryptographer, developer, or privacy advocate, this panel delivers expert insights on the future of secure, decentralized computation. 00:00 Intro to Privacy Enhancing Technologies Panel 01:26 Panelist introductions and backgrounds 03:11 What is homomorphic encryption and FHE? 06:14 From theory to real-world FHE applications 08:18 MPC vs FHE for private computation 10:24 Inco’s approach to FHE on EVM-compatible blockchains 13:02 Use cases: private voting, auctions, DeFi, gaming 14:09 AI, privacy, and encrypted personal data risks 15:48 Practical private payment systems onchain 17:12 Gaming and confidential mechanics with FHE 18:47 Performance benchmarks for FHE today 21:50 Circuit optimization and FHE hardware needs 23:47 Reinventing algorithm design for private computation 25:21 Is hardware dependency a blocker for PETs? 26:22 Combining FHE and ZK for better performance 27:00 Other PETs: ZK, anonymous signatures, whitebox crypto 29:39 Rethinking developer experience for PETs 31:08 Compiler challenges for encrypted inputs 32:49 Writing performant, privacy-respecting programs 34:41 Secure branching and control flow with encrypted data 36:29 Concrete Python and automatic FHE compilation 37:35 What’s next: private AI, privacy in DeFi, hackathons 40:16 Closing thoughts and upcoming announcements _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *Pragma Denver* Pragma Denver 2024 took place at The Arch in Denver on February 28, 2024, and was an in-person summit for builders and leaders in the web3 ecosystem. 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. Watch the full Pragma Denver playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh4lJw0vruQ4prh8iMDUk89i&si=ayJ64Sgcqew1fdFk ETHGlobal's Pragma series takes place in cities around the world, and is designed to be a different kind of event. Ever since we first introduced our new event series, Pragma, in Tokyo in the spring of 2023, we have been fostering a curated, global community of individuals who deeply care about web3. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow Miguel de Vega* X: https://x.com/miguel_de_vega ✅ *Follow Nillion* X: https://x.com/nillionnetwork ✅ *Follow Remi Gai* X: https://x.com/remi_gai ✅ *Follow Inco Network* X: https://x.com/inconetwork ✅ *Follow Pascal Paillier* X: https://x.com/pascal_paillier ✅ *Follow Zama* X: https://x.com/zama_fhe ✅ *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 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Swarm · Jun 20, 2024

In this presentation we explore the underlying technical design choices which enable Swarm's unstoppable and censorship-resistant characteristics. We will take a deep dive into the technical features powering Swarm, such as its chunk-based storage model, which distributes file segments across a network to prevent data loss and censorship. We'll also discuss the Swarm's approach to storage incentives, and content addressing. Additionally, we will learn how optional features like encryption and erasure coding further enhance privacy and data persistence. In this video, Noah, a member of the DevRel team with a focus on documentation and educational articles, explains the features that make Swarm an unstoppable platform. He breaks down complex concepts into plain language for a broad audience. The presentation covers three main characteristics of Swarm: data persistence, data availability, and censorship resistance. Noah delves into Swarm's chunk-based storage model, where files are split into chunks and distributed across the network to ensure redundancy and resistance to network changes. He also discusses the anonymity of upload and download requests for privacy. The incentives model is explored, detailing how storage nodes are rewarded for honesty through a game-like mechanism that penalizes censorship and ensures data integrity. Payment and addressing models are explained, highlighting how anyone can contribute to keeping data online through postage batches and how content addressing ensures consistent references for files. Lastly, Noah touches on optional features like encryption for privacy and erasure coding for data protection against loss or large-scale network failures. The video concludes with a demo using VJS, demonstrating how to create postage batches, upload data, and download it with encryption and erasure coding enabled. Noah encourages viewers to try out these features themselves.

ZuBerlin · Jun 14, 2024

Clip The video features a talk by Bowen from Airblock, titled "Untangling Encryption," focusing on the misconceptions and applications of encryption in the context of blockchain technology. The speaker emphasizes that encryption is often misunderstood as being synonymous with privacy and anonymity, which is not always the case. He discusses how encryption is used in various applications beyond just privacy coins and highlights that there is no one-size-fits-all encryption solution. Instead, different tools like Zero-Knowledge Proofs (ZK), Fully Homomorphic Encryption (FHE), and Secure Multi-Party Computation (MPC) can be mixed and matched based on specific needs. Bowen also addresses the inaccessibility of encryption tools, which are often chain-specific, leading to high costs and delayed adoption. He corrects the misconception that encryption is only for DeFi or used by extremists, explaining its broader applications such as in gaming and resistance to censorship. The talk also covers the future of encryption, aiming for it to be programmable, accessible, compliant, and seamlessly integrated into user experiences without them being aware of its use. Bowen mentions Airblock's focus on creating modular and composable encryption solutions to facilitate development. Bowen concludes by encouraging consideration of user needs when developing cutting-edge technology. The session ends with a Q

Ethereum Denver · Oct 9, 2023

Introducing Dawn Wallet, the iOS Ethereum wallet designed to simplify your Ethereum experience on your phone. With its user-friendly interface and convenient features, you can seamlessly navigate the world of Ethereum without leaving your browsing session. One standout feature is the native Safari extension that allows you to effortlessly make trades and actively participate in governance activities. Say goodbye to switching between apps or devices - everything you need is right at your fingertips. Security is a top priority for Dawn Wallet. Rest easy knowing that your transactions are protected with encryption and Face ID authentication, ensuring that only authorized individuals have access to your wallet. What sets Dawn Wallet apart from others is their commitment to transparency and collaboration. They have generously open-sourced their software development kit (SDK), empowering developers like us to build our own customized Ethereum wallets. Stay tuned as we delve into the exciting world of Dawn Wallet in our upcoming video! Discover how this innovative iOS Ethereum wallet can revolutionize your mobile cryptocurrency experience. #DawnWallet #EthereumRevolution #buidl #buidling #ios #appleweb3 TLDR: The key idea of the video is that Dawn Wallet is a user-friendly iOS ethereum wallet that prioritizes security and aims to make it easier for users to interact with various Ethereum applications on their phone. Speaker: 00:00 📱 Dawn Wallet is an iOS ethereum wallet that aims to make it easier to use ethereum on your phone by integrating it into your normal browsing experience and prioritizing security. 01:20 🔒 An encryption key is generated to protect your private key on your device, which is stored in the keychain and secured with face ID, and the speaker demonstrates how to use the Dawn Wallet for various Ethereum applications. 02:42 💡 Dawn Wallet is used to interact with adapt, and in this video, the speaker demonstrates how to load up Dawn to obtain a Denver ticket. 02:59 💼 Tom Waite demonstrates how to connect and sign a message using the Dawn Wallet in Safari, and also showcases a transaction on openc with a breakdown of its details and options. 04:00 💡 Blowfish is a security tool for wallets that simulates transactions to check for any suspicious activity, making it easier to use Ethereum. 04:46 💼 Dawn Wallet is a versatile app that allows users to trade and manage various cryptocurrencies, with plans to add features such as automated backups and NFT support. 05:27 📱 A new app called Dawn Wallet has been developed to help users discover and navigate through various Ethereum apps based on what people are excited about. 06:33 📱 Dawn Wallet is a user-friendly Ethereum wallet that allows users to download, create a wallet, and connect to Safari for easy use, with plans to expand to other platforms.