**ETHGlobal's flagship online event is back**: The idea for the first ETHOnline formed out of sheer necessity. As we were forced to take a break from in-person events back in 2020, we raced to create a virtual equivalent that could inspire the same magical feeling.

Three years later, **ETHOnline 2023** has grown into one of the most exciting events on our calendar, anticipated by hackers all over the world.

ETHOnline is a three week long online hackathon with over **$200,000 USD** in prizes as well as a **series of curated summits**, celebrating some of the most significant happenings & learnings from the past 12 months in web3. **Apply now to be a part of it!**


ETHOnline 2023

America/New_York

What is ETHOnline 2023?

Who can attend this event?

How much does it cost to attend?

I'm new to Ethereum - can I still participate?

Can I participate remotely at this event?

Can I start working on my project before the event?

How many members are allowed on my team?

What can I build during the event?

Do I need to submit an application if I'm already part of a team?

What is the role of a mentor?

What is the role of a volunteer?

Can I join two teams/projects?

Can I hack solo?

Should I be worried if I don’t have a team yet?

I don’t have any ideas for what to build. Help!

Where can I find all projects ever built at an ETHGlobal event?

How can I get ETHGlobal to host a hackathon at my city?

Am I allowed to work on my project before the hackathon begins?

If I’m working on my project before the hackathon begins, will I be eligible for partner prizes?

Where can I find current and past video content?

Where can I find some great content and resources about Ethereum and our community?

How can I partner or collaborate with ETHGlobal?

When must I stop working on my project?

Who do I go to for help if I’m stuck on my project? 

What are some tips and tricks for a successful hacker application?

How come I cannot submit my application because an optional field is blank?

Why haven’t I heard back about my application?

My friend/teammate missed the deadline for a virtual hackathon. Can they still join my team?

I missed the deadline! Can I still apply?

Can I change my wallet address?

Can I change my email address?

I marked my stake as reusable but want it returned to me. Help! 

I cannot afford to stake. Can you override my stake?

Can I apply for a mentor or volunteer role if my native language isn’t English?

What do I do if I staked my spot but my dashboard is still asking me to Stake?

What do I do if I accidentally double-staked?

Why is my stake is stuck pending?

When will I get my stake back?

I can no longer attend due to a conflict. Can I have my stake returned?

Can a friend take my spot if I can no longer attend an event?

How come I don’t see my returned stake transaction?

What is Project Check-in?

What happens if I miss my Project Check-in? 

How can I remove somebody from my team?

Can I edit my project name, description, etc. after it is created?

How come I have not received my stake return yet?

Kautuk Kundan

Stackr Labs

Rahul Kothari

Aztec Labs

Anish Mohammed

Panther protocol

Jenil Thakker

Coinvise

Patrick McCorry

Arbitrum Foundation

Nicola Santoni

Lemniscap

Yoni Ben Shimon

MatchboxDAO

Anwar Alruwaili

SwopX

Omar Bohsali

Center.app

Evin McMullen

Disco.xyz

Tony Rosler

Sofon

Justin Bram

Astaria Labs

Katie Garcia

UDHC Finance

Vijay Michalik

Superfluid

Rajath Alex

Llama

Praneeth Srikanti

Ethereal Ventures

Pramod Shashidhara

Chainlink

Cole Kennelly

Volmex

Ainhoa Aldave

Zondax

Jayden Windle

Future Primitive

Shane van Coller

Loop Crypto

Soubhik Deb

EigenLayer

Future Alisha

Crypto Native

Jerome de Tychey

Cometh.io

Tony Olendo

Polygon Labs

Rory Arredondo

ETHGlobal

test

Austin Griffith

Ethereum Foundation

Germán Martínez

Safe

Akshaj Kadaveru

Wormhole

Kartik Talwar

Co-founder

Yorke Rhodes

Hyperlane

John Shutt

Zak Ayesh

Filecoin

Raza Zaidi

Scroll

lib evm

Mantle

David Phillips

Mask Network

Mohammad Jahanara

JT Riley

Ecosystem Contributor

Benny Giang

Itai Turbahn

Dynamic

Boidu

WalletConnect

Tadeo  

Spark

Jack Sanford

Sherlock

Toghrul Maharramov

Samridh Saluja

Guardrail

Patrick Collins

Cyfrin

Maika Isogawa

Webacy

Sameer Arora

Certora

Petr Korolev

oxor.io

Mustafa Al-Bassam

Celestia

Nick White

John Adler

Prabal Banerjee

avail

Sanket Shah

Polygon

Sanna Bedi

UNICEF

Ayodeji Awosika

Web3Bridge

Azeem Khan

Gitcoin

Liam Horne

Yele Bademosi

Onboard

Paul Brody

Ernst & Young (EY)

Scott Moore

Public Works

Marcus Wentz

Taiko

Samarth Saxena

Shardeum

Flor Ronsmans De Vry

Curious Addys

**Build with Spark!**

*   Best use of Conduits 🚇 🥇 4,000 🥈 2,000 🥉 1,000
*   Best use of sDAI 💸 🥇 4,000 🥈 2,000 🥉 500
*   Best use of SparkLend 🌳 🥇 4,000 🥈 2,000 🥉 500


🥇 Spark — Best Use of Conduits 🚇

🥈 Spark — Best Use of Conduits 🚇

🥉 Spark — Best use of sDAI 💸

🥇 Spark — Best use of sDAI 💸

🥈 Spark — Best use of sDAI 💸

4️⃣ Spark — Best use of sDAI 💸

🥉 Spark — Best use of SparkLend 🌳 

🥈 Spark — Best use of SparkLend 🌳 

🥇 Spark — Best use of SparkLend 🌳 

## 20k worth in prizes up for grabs!

👋 GM GM developer! Scroll is coming to ETHOnline and we’re excited to see what you’re going to build. Scroll is bringing the builders 20k in prizes:

1.  Prize Pool of $4k
2.  13 bounties worth $16k

Check out the details below how you can win a prize by deploying on Scroll.

## 🚀Deploy on Scroll ($4000 Pool Prize)

### Description

***This should just mean changing your RPC!*** Try out Scroll's next-generation zk-rollup by deploying your project's smart contracts on the Scroll testnet on Sepolia. With Scroll's zkEVM, users will benefit from lower costs, shorter block times, and higher throughput -- without you needing to modify your Solidity code.

### Bounty Amount

$4000 pool prize

## 🎯Best on Scroll: (3x $2000, 10x $1000)

### Description

You’re here to build the latest in greatest in web3 on Ethereum — we want to see it deployed on Scroll. Use Scroll’s Sepolia Testnet for your deployment of a novel DeFi application — we’re compatible with the EVM at the bytecode level, so all your Solidity, Vyper, or YUL should just work with the change of an RPC address.

### Bounty Amount

🥇3 times a $2000 per team

🥈10 times a $1000 per team - honorable mentions

### Criteria

*   Project contracts must be deployed on Scroll Sepolia and verified on the [Scroll Etherscan](http://sepolia.scrollscan.dev/).
*   Project must have a working flow
*   Project that excite us, include some of the following:
*   Solve a tangible problem or build a relevant use usecase
*   Provide value to developers/community in terms of public good
*   “super-nerdy” not necessarily product-market fit, but a cool geeky project


🏊 Scroll — Pool Prize

🥇 Scroll — Best Use

🥈 Scroll — Best Use

Mask Network is thrulled to share that we are lighting up ETHOnline 2023 with a dazzling $10,000 bounty!

We’re inviting you to weave your magic on our open-source DID protocol, Next.ID, and create something groundbreaking!

Your Challenges Await 🎯

1️⃣ Pave the Way for an Autonomous World ($3k USD)

Your Quest: Craft a secure, user-friendly identity solution for on-chain gaming or innovative Web3 game social interaction user cases with Next.ID.

\=========================================

2️⃣ Best Use of RelationService ($6k USD)

Your Quest: Develop a groundbreaking application using the RelationService API, exploring use cases from cross-platform profile search to DAO tooling, and beyond.

\=========================================

3️⃣ Unveil Your Revolutionary Social App ($1k USD)

Your Quest: Design a decentralized social application that champions privacy, data ownership, and builds a vibrant user community.

For more details about each bounty and judging criteria, **please read **[**this page**](https://nextid.notion.site/ETH-Online-Bounty-Prize-Detail-e53fa7a53dbe467c905e9a228da221b2?pvs=4)**.**


🥇 Mask Network — Fully On Chain Gaming

🥈 Mask Network — Fully On Chain Gaming

🗨 Mask Network — Most Innovative Social App

💡 Mask Network — Most Creative

🛠 Mask Network — Most Ambitious

🖌 Mask Network — Most Refined

Safe will be giving $10,000 for the best hacks using [Safe{Core}](https://safe.global/core).

To be eligible, developers must build with one of the following options:

[Safe{Core} Protocol](https://github.com/safe-global/safe-core-protocol-specs) (integrating or implementing any part of the Protocol). Check this demo app to get an overview of what can be done: https://github.com/5afe/safe-core-protocol-demo.

*   1st prize: $2,500
*   2nd prize: $1,500
*   3rd prize: $1,000

[Safe{Core} Account Abstraction SDK](https://github.com/safe-global/safe-core-sdk) (integrating at least one of the existing kits). Check this demo app to get an overview of what can be done: https://github.com/5afe/account-abstraction-demo-ui.

*   1st prize: $2,500
*   2nd prize: $1,500
*   3rd prize: $1,000


🥇 Safe — Best Use of Safe{Core} Protocol

🥈 Safe — Best Use of Safe{Core} Protocol

🥉 Safe — Best Use of Safe{Core} Protocol

🥉 Safe — Best Use of Safe{Core} for AA

🥈 Safe — Best Use of Safe{Core} for AA

🥇 Safe — Best Use of Safe{Core} for AA

**🥇Top prize - $3,000 - Best Use of Hyperlane**

 The grand prize will be given to the most compelling submission made during the hackathon. It can qualify under any of the categories below, so be sure to read them to get some ideas! Think of the grand prize as an extension of the category prizes.

**🎼 $2,000 1st, $1,000 2nd - Best Interchain Applications**

An interchain application is an application that communicates between different blockchains. It can either transfer assets or make interchain function calls. The winner of this prize will be the most impressive application that makes use of Hyperlane and benefits from its presence on multiple blockchains. Depending on the quality of submissions relative to other categories, Hyperlane may award several Interchain applications.

**💸 $2,000 - Best use of Hyperlane Warp Routes**

Warp Routes are Hyperlane’s unique take on token bridging. They are unique and instanced expression of bridging as opposed to the traditional omnibus token bridge design. Each Warp Route can have its own security model, using Hyperlane’s Interchain Security Modules. Perhaps most importantly, Warp Routes are completely permissionless! No one can stop you from bringing whichever asset you’d like to any chain you’d like. To win this prize, you need to use Warp Routes in your submission. However, the more creative your submission is, the better.

**🚝 $2000 - Best Hyperlane Infrastructure**

This category is for building infrastructure that either enhances Hyperlane or makes use of Hyperlane's capabilities. Maybe you’ll build a customized Deploy tool to bundle Hyperlane with any OP Chain deployment? Or perhaps you’d build a way to more easily connect chains with Hyperlane? Maybe you’ll build a tool to allow any chain to get access to oracle feeds from any chain? You decide! To win, your submission will have to serve a useful purpose either for Hyperlane users, or utilize Hyperlane to provide a valuable service to someone else.

**🌐 $2,000 - Write new Interchain Security Modules (ISMs)**

Hyperlane’s Modular Security Stack is based on a range of Interchain Security Modules that developers can use to secure the way applications communicate between chains. Some ISMs are already available, and more are being developed. The hackathon is a great chance to build new ones.


🥇 Hyperlane — Best Use

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