Applications for ETHDenver 2023: #YearOfTheSpork are open! #BUIDLWeek: February 24th - March 1st Main Event: March 2nd - March 5th #BUIDLers, speakers, judges, volunteers, mentors, and everyone else are encouraged to get your app in ASAP! Apply at: https://ethdenver.com/apply Connect with us: https://discord.gg/sporkdao https://twitter.com/ethereumdenver

In this video, we delve into the fascinating world of ERC-4337. We'll take you on a journey through the intricate account abstraction system architecture and explore how it functions. Additionally, we'll guide you on leveraging the powerful API and SDK that have been meticulously crafted for generating UserOperations to seamlessly interact with the EntryPoint contract. Throughout the video, we'll unravel the complexities surrounding ERC-4337 and shed light on its inner workings. You can expect a comprehensive overview that covers all essential aspects of this innovative system. From understanding its architecture to learning how to effectively build upon it, we've got you covered. Join us as we dive deep into ERC-4337 and equip ourselves with valuable insights about this cutting-edge technology. Stay tuned for an engaging exploration of ERC-4337's capabilities! #ERC4337 #AccountAbstractionSystem TLDR: Account abstraction simplifies transaction validation and execution on the Ethereum network by using contract accounts, entry points, paymasters, and bundlers, allowing for batch execution, alternative execution mechanisms, and authentication with session keys. 00:00 📝 An account abstracted account simplifies validation, execution, and gas payment by using contract accounts, entry points, paymasters, user operations, and bundlers, allowing applications to create transactions that are validated by bundlers before being added to the Ethereum chain. 02:45 🔍 ERC-4337 wallets validate transactions through contract calls, verifying account code, paymaster, and gas before executing on Ethereum network. 05:29 💡 Account abstraction enables the validation and execution of transactions using code, allowing for batch execution and alternative execution mechanisms, while a paymaster contract extracts tokens from users to pay for transactions. 08:46 🔑 Account abstraction allows for authentication with session keys, which can be used for low-security mechanisms like gaming, as well as for corporate accounts with different signers. 09:52 💡 Different roles in a Dao can have different security mechanisms, such as token payments or sponsor paymasters, allowing for various use cases and the need to build. 11:20 🔑 A browser extension called Trampoline allows users to create and customize account obstructions with different signature check mechanisms, providing a user-friendly experience for onboarding and transaction handling. 13:20 📝 Account abstraction allows for the creation of accounts without the need for additional mechanisms, with the process involving providing constructor code, handling nons, creating an execution function, and using an onboarding component to collect user information and create the account. 15:34 📝 The speaker shows how to create an account, load source into metamask, and execute transactions in a custom UX, as well as connecting to a sample application on etherscan using metamask and mentioning the use of a bundler for user operations. Dror Tirosh ERC-4337 lead developer ERC-4337 core team (previously OpenGSN) Dror has over 30 years of experience in software development. In 2018 he entered the web3 space, starting as the lead developer in Tabookey, followed by the OpenGSN project, and finally joined the ERC-4337 core team

n this video, we delve into the fascinating topic of L2 (Layer 2) solutions in the Ethereum ecosystem. Join us as we explore the limits of these solutions and challenge the common belief that they are enough to scale Ethereum effectively. We'll dive deep into the trade-offs associated with L2s and shed light on why they may not be suitable for every use case. Scaling Ethereum is a complex task, and while L2s have emerged as a dominant solution, it's crucial to understand their limitations. By examining these limitations, we can gain valuable insights into why additional solutions are necessary to address scalability concerns comprehensively. Throughout this discussion, we acknowledge that bridging technology to other chains introduces risks that need careful consideration. Our aim is to provide you with a comprehensive understanding of how L2s fit within the broader context of scaling Ethereum and highlight alternative approaches that can complement or even surpass their capabilities. Join us in this thought-provoking exploration of L2 solutions in the Ethereum ecosystem, where we unravel their true potential and discuss what lies beyond them. #Ethereum #Scalability About the Speaker: Martin Köppelmann is a seasoned blockchain entrepreneur with over 9 years of experience. He holds a pivotal role as a leading contributor at the GnosisDAO. The DAO has created numerous essential infrastructure solutions for the Ethereum blockchain, including the widely utilized Safe Multisig wallet. With over $29 Billion in digital assets under its management, it's a testament to their work. Martin's current objective is to build the Gnosis Chain; a community-run, credibility neutral public blockchain network. TLDR: Layer 2 solutions may not be the ideal solution for scaling Ethereum due to security concerns, limited scalability, high fees, centralization, and potential censorship, and it is important to consider trade-offs and values when deciding between L2 and other options. 00:00 🔒 L2s may not be the ideal solution for scaling Ethereum due to security concerns and the potential for fund loss, despite their initial purpose of bridging technology. 05:04 🚫 The scalability of Layer 2 solutions is limited by the size of the Layer 1 chain, making it unable to handle the potential number of users and transactions, as demonstrated by the example of Bitcoin and lightning. 09:20 🚫 L2 scaling limits on Ethereum result in high fees, making it economically infeasible to exit from L2 to L1 if the value on L2 is smaller than the exit fee, and not all applications can easily transition due to their complex state. 11:44 🔒 L2 platforms in the Ethereum ecosystem may not be efficient for certain applications, are centralized and have the power to censor transactions, making it difficult for decentralized exchanges to compete, and there is a risk of sequencers being forced to censor transactions due to legal pressure or KYC requirements. 16:33 📉 Exiting or going through L1 to L2 has high costs, but if assets are issued on the chain, the argument for L2 becomes less important; running your own full node for a native asset provides high security even if validators go malicious. 19:15 🔒 Altus is facing an upgrade problem due to Ethereum's instability, which poses a challenge for L2 solutions, and Gnosis is deeply integrated in Ethereum and advocates for more decentralized L1 block space. 22:06 🔒 L2s can expand Ethereum's block space by leveraging its decentralization, but investing in credible neutral block space is crucial for Ethereum's mission. 25:40 💡 Consider the trade-offs and values when deciding between L2 and other options, such as a chain like Gnosis Chain.

In this informative video, Jesper Kristensen from Panoptic delves into the fascinating world of derivatives infrastructure in the frontier of DeFi. Join us as we explore the four essential pillars that form a robust financial ecosystem: fixed income, equities, futures, and options. Options, in particular, hold immense significance as they can be built upon the foundation of these pillars to enhance capital efficiency and facilitate intricate hedging strategies for risk diversification. However, navigating the current state of options in crypto and DeFi presents its fair share of challenges. Stay tuned to gain valuable insights into this dynamic landscape and discover potential solutions to overcome these obstacles. #DeFi #DerivativesInfrastructure #buidl #buidling #buidlweek TLDR: Panoptic aims to solve liquidity and technical challenges in options trading in DeFi by integrating options with the DeFi ecosystem, leading to increased participation and a modular approach. 00:00 🔑 Panoptic aims to solve the lack of liquidity and technical challenges in options trading in DeFi by unlocking existing funds and integrating options with the DeFi ecosystem, leading to increased participation and a modular approach. 04:01 📊 Panoptic allows anyone to create permissionless pools on Uniswap, representing option positions as ERC 1155 tokens, providing better risk-reward profiles for LPs and expanding the DeFi ecosystem. 08:26 🔍 Implementing decentralized liquidation networks and leveraged options in DeFi, allowing users to protect their positions and take advantage of specific payoff profiles. 10:09 📚 The buyer borrows LP tokens, converts them to USDC, and holds 2500 USDC, with the payoff being zero if the price is above a certain range, while the seller's position is determined by the strike price, allowing the buyer to close their position and exercise their option by swapping 1 ETH for 1000 USDC, resulting in 1500 USDC profit for the buyer and 1 ETH for the seller. 13:39 🔍 Panoptic is developing an options product that allows users to deposit liquidity and trade puts and calls, with plans to expand to any token and provide more details on Twitter, launching on testnet in a few months and on mainnet later this year, while demonstrating adjustments to time scale and features in Unit Swap liquidity pools. 16:52 📝 The speaker discusses different strategy templates and chooses a long put, demonstrates customizing payoff curves using Panoptic, explains creating and minting positions in DeFi, and invites viewers to learn more and ask questions, mentioning an upcoming event. 20:21 🔍 Panoptic provides liquidity providers with higher fees and a better risk-reward profile, while ensuring reliable option pricing data in decentralized exchanges. 24:46 💡 Integrating options into the existing DeFi ecosystem is a powerful idea for accessing liquidity.

In this video, we delve into the exciting world of our latest access protocol, Rhapsody URL. Designed specifically for the Ethereum virtual machine, this innovative protocol opens up a whole new realm of possibilities for accessing and utilizing data in the future. Similar to HTTP, Rhapsody URL is an Iana registered scheme that allows you to locate decentralized resources hosted by smart contracts or mapped by ENS. It's a game-changer for developers looking to create applications using webview URLs. One of the key motivations behind this access protocol is the growing trend of NFTs moving fully on-chain. As more and more non-fungible tokens embrace blockchain technology, Rhapsody URL provides a seamless way to interact with these digital assets. Join us as we explore the intricacies of Rhapsody URL and its potential impact on the world of decentralized applications and data accessibility. Stay tuned for valuable insights and practical tips on leveraging this cutting-edge access protocol. #RhapsodyURL #DecentralizedApplications #buidl TLDR: The key idea of the video is that the web3:// access protocol enables decentralized access to resources hosted on Ethereum, allowing for the creation of decentralized applications and addressing the issue of high storage costs on the blockchain. 00:00 📜 Web3 access protocol is a decentralized URL scheme designed for the Ethereum virtual machine to access decentralized resources hosted by smart contracts or within ENS. 01:32 📱 The web3:// access protocol enables developers to create decentralized applications for on-chain NFTs, allowing users to browse web content directly on Ethereum smart contracts. 04:29 🌐 Web3:// is a decentralized access protocol for the Ethereum Virtual Machine (EVM) that inherits features of HTTP, integrates with name services, allows for the display of various data formats, and provides a gateway for accessing EVM using web3:// URLs. 06:26 🌐 Web3:// allows browsing content hosted on Ethereum, with support for multiple blockchains and potential applications such as on-chain FD images. 07:44 💡 They upload metadata SVG layers on chain, compose them using smart contracts, and use web 3 URLs to call contracts with custom methods, allowing for rendering of any token URI; they also propose ERC 5018, a file system-like interface using smart contracts to synchronize local folders and files with the blockchain. 09:47 💡 Web3 allows for decentralized applications like dynamic websites, decentralized email, and more, but the high storage costs on the Ethereum blockchain remain a critical issue. 11:37 💡 The purpose of web3:// is to create a native storage layer for Ethereum that can scale storage to petabytes with a significant cost reduction. 12:41 🌐 We can achieve better scalability and full decentralization by building on top of Ethereum with web3://, eliminating the need for centralized components like HTTP DNS and relying on native protocols for Front End EVM elastic storage.

Talk of AI in crypto is not new. But here we don't focus on the buzzwords. Instead, we consider why it is of fundamental importance for the stability of our societies that we develop means for individuals, organisations and states to co-own the most powerful AI programmes, and how crypto & Web3 plays a crucial role in this endeavour. I will present a roadmap to co-owned AI that starts today, with DAOs and their concrete problems. And ends with a solar punk outlook on a future, enabled by equitable AI, serving us all. David Minarsch https://twitter.com/david_enim Co-founder Autonolas

ZKML is a newly emerging field in which you apply the properties of zero-knowledge proofs to machine learning models in order to be able to verify the computation of these models by creating ZK proofs. Additionally, you can selectively hide parts of the input or the model. There are interesting use cases emerging and the state of the art is moving fast. This talk would be a ZKML introduction.

Welcome to our video where we dive into the fascinating world of community innovation festival that foster creativity and idea-sharing. We explore the positive atmosphere that permeates this event, bringing together individuals from diverse backgrounds and communities. One key aspect we explore is the involvement of sponsors who play a crucial role in supporting ETHDenver. Their contributions help create an environment conducive to collaboration and innovation. We'll also shed light on how these events serve as a platform for emerging creative projects, providing opportunities for talented individuals to showcase their ideas. What makes these gatherings truly exciting are the unexpected projects that emerge from them. These surprising outcomes highlight the power of collective imagination and reinforce our belief in the limitless potential within each gathering. Throughout this video, we will emphasize our role as stewards of this cause, dedicated to nurturing an inclusive space where ideas can flourish. Join us as we celebrate the spirit of community-driven creativity! #CommunityGatherings #CreativityUnleashed #buidl #buidling TLDR: ETHDenver is a collaborative event where people from all over the world come together to create and innovate, finding their community and engaging in projects that matter to them. 00:00 😊 People from all over the world gather at ETHDenver to collaborate and create, finding their community and engaging in what matters to them. 00:31 👉 Founder John Paller highlights the unique and collaborative nature of the event, emphasizing the emergence of creative projects and the excitement of discovering unexpected innovations each year. 01:04 Regenerative nature of SporkDAO is more than an event. It's how do we support the projects that are coming out of the #BUIDLathon About ETHDenver: ETHDenver is a Community-Owned Innovation Festival. With the genesis of SporkDAO in June of 2021, ETHDenver became the first event DAO in the world. All event proceeds are used to #BUIDL value for our community and to realize the decentralized future. Our goal is empowering the blockchain/Web3 community to shape this new world while cementing the Rocky Mountain region and the state of Colorado as a thriving hub of Ethereum and blockchain innovation. Subscribe: https://www.youtube.com/@ETHDenver Connect with ETHDenver: Website: https://www.ethdenver.com Twitter: https://twitter.com/ethereumdenver Instagram: https://www.instagram.com/ethdenver/ YouTube:  @ETHDenver ​