Ethcon Korea 2023

Keynote by Vitalik Buterin Conference speeches

Welcome & Introduction   Conference speeches

Lunch time🌯

Conference speeches

Hackathon registration opens

Dinner time🍛

Hackathon opening ceremony

Hackathon begins

Late night snack🍟

🔥Let's Hackathon🔥

Educational workshop begins / 
Community event

Educational workshop begins /   Community event

Workshop Continues /  Community event

Project presentation starts

Participants vote to influence the distribution of the QF prize pool among the projects.

Please submit this form for QF track: 
 https://forms.gle/8kfSFVXYX6wS2PLQA

QF Track

Rethink rewards!

 The open track winners are selected by the hackathon judges.

Open Track

Optimism reward

Winners and prizes are selected by each partners according to respective criterias.

Sponsor Prizes

Sponsor Rewards

The hackathon is separate from the judging, in which all participating teams present their products in a short 1-2 minute speech.

In addition, hackathon participants will receive a demand survey on whether to participate in the Demo Day, which will be given when 1st-2nd place is selected for each track.

Demo Day

**TOTAL REWARD: 2.5ETH**
Sponsor Track: MetaMask

Sponsor Track: MetaMask

MetaMask SDK

Build the best snap

**TOTAL REWARD: 2.5ETH**
Sponsor Track: Linea

Sponsor Track: Linea

Deploy a contract on Linea

Build a social & identity dapp on Linea

Build an account abstraction dapp on Linea

**Project Description**
Smart contract developers are reinventing applications in finance, gaming, insurance, art, and many more industries, creating a system that executes contracts based on mathematical certainty. 
Chainlink decentralized oracle networks are at the center of this evolution, enabling developers to leverage high-quality data from APIs and other data sources along with powerful off-chain computation resources to build the next generation of smart contract applications.
Whether you need secure market data for a DeFi app, verifiable randomness for a blockchain-based game, or low-cost off-chain computation to automate various contract functions, Chainlink’s flexible oracle infrastructure provides developers with the extensive suite of decentralized services they need to build more feature-rich dApps.  

**Resources**
Please refer to [https://docs.chain.link/resources/hackathon-resources ](url)
You’ll find:
- The newest Chainlink CCIP documentation
- Smart Contract Starter Tutorial
- [Documentation] for all the Chainlink features
- Best practices utilized by top protocols like Aave and Synthetis
- Hardhat Starter Kits
- Brownie Starter Kits
- Truffle Starter Kits
- dApp Tools Starter Kit
More useful resources: Chainlink Bounties Video, Chainlink Judging video 

**Bounty Criteria**
Anything that came from the Chainlink Documentation counts, using Price Feeds, VRF, Automation, Chainlink Functions or the newest Chainlink CCIP!
- Chainlink Automation enables conditional execution of your smart contracts functions. Define the business rules, the trigger and what will happen.
- Chainlink VRF is the verifiable, tamper-proof random number generator for blockchain gaming and NFT projects. Any smart contract can get random values without compromising security or usability.
- Chainlink Proof of Reserve Feeds provides the status of the reserves for several assets in the same way as Price Feeds.
- Chainlink NFT Floor Pricing Feeds provides a conservative and risk averse floor price estimate for an NFT collection.
- Chainlink Data Feeds are the quickest way to connect your smart contracts to the real-world data such as asset prices, reserve balances, and L2 sequencer health.
- Chainlink Functions can help you to build a dApp that pulls (or pushes) data connecting to an external API, this could be a public or private API, a SaaS app, any IoT device, or an enterprise system. In addition to off-chain data, it could utilize off-chain computations on the data as well (for example, aggregate data and put on-chain or connect to decentralized storage systems such as IPFS).
- The Chainlink Cross-Chain Interoperability Protocol (CCIP) provides a single simple interface through which dApps and web3 entrepreneurs can securely meet all their cross-chain needs, including token transfers and arbitrary messaging.						

You must use Chainlink to make a state change on the blockchain to be eligible.
Nice to have: how you use Chainlink in the project description.
It must be possible for the judges to find the Chainlink use in your code. Only the intention to use is not valid.

We will look at the following criteria:
- UI/UX/DX - How useful is your application? Is it visually appealing?
- Blockchain technology application - How valuable this project is for decentralization and adoption of Blockchain and Web3
- Wow Factor - Anything not covered above! This is if you blow us away in some other way.
 
**Prize Allocation**
2x Best project using Chainlink CCIP - $1000 each
2x Best project using other Chainlink service - $500 each

**Links**
Official website: [https://chain.link/ ](url)
Official documents: [https://docs.chain.link/ ](url)

Sponsor Track: Chainlink

Building with Chainlink CCIP

Building with other Chainlink services

Spark Protocol is the ultimate money market platform for DAI users, combining the best liquidity directly from Maker with the best user experience in DeFi.

Spark Protocol offers:

- SparkLend: The next generation lending market, allowing users to cross collateralize positions and borrow DAI at a predictable rate
- sDAI: Stake your DAI in Maker’s DSR module while holding a liquid representation of it that you can use across DeFi
- SparkConduits: Connect Maker liquidity directly into protocols
- SparkSpells: Decentralize spell creation while inheriting Maker governance security

**Build with Spark!**

- SparkLend
    - Build an application that makes use of the lending pools, depositing and borrowing assets
    - The DAI market allows you to borrow DAI at a predictable rate defined by Maker governance
    - The other markets’ rate is based on utilization
    - Try to avoid simply depositing idle liquidity from your app, there should be a purpose for it
    - Localise your application to the Korean ecosystem

- SparkSDAI
    - Build an application that makes use of sDAI, a yield bearing stablecoin
    - sDAI is an ERC-4626
    - Try to avoid simply depositing idle liquidity from your app, there should be a purpose for it
    - Localise your application to the Korean ecosystem

- SparkConduits
    - Build an application that makes use of Conduits to connect Maker liquidity to a protocol that provides yield
    - Consider why it makes sense for you to use conduits instead a different source of liquidity (users, pools)
    - Localise your application to the Korean ecosystem

Sponsor Track: Spark

Build with Spark

Sponsor Track: Axelar

Axelar Prize

We have 4 ETH in total for bounties! Below we have described our three prize categories, as well as resources to help you get started building.

If you want to discuss and further unpack any ideas mentioned below or are needing help in any way, please reach out to us! We’re super excited to see what you build for Ethereum.

**Deploy on Taiko 👷**
Deploy your dapp, tool, or whichever useful smart contract you are building on Taiko. This could be in the realm of DeFi, NFTs, social, gaming, and much more. As an Ethereum-equivalent ZK-EVM, this means you can build exactly as you do for Ethereum L1 and just change the RPC—your Solidity code and favorite tooling work out-of-the-box.

2 ETH (split among maximum top 4 projects)

**Get started building 🛠️**
Docs: [https://taiko.xyz/docs](url)
Guides: [https://taiko.xyz/docs/guides](url)
Taiko GitHub: [https://github.com/taikoxyz](url)
Taiko Discord: [https://discord.gg/taikoxyz](url)

Sponsor Track: Taiko

Infrastructure 🧱

Ethereum Public Goods 🌏

Polygon zkEVM is the first zero-knowledge scaling solution that is **fully equivalent to an EVM**. All existing smart contracts, developer toolings and wallets work seamlessly. Polygon zkEVM harnesses the power of zero-knowledge proofs in order to reduce transaction costs and massively increase throughput, all while inheriting the security of Ethereum.

Building dApps on zkEVM is completely similar to Ethereum. Simply switch to the zkEVM RPC and start building on a network with much higher throughput and lower fees. Polygon zkEVM provides a complete EVM-like experience for Developers and Users alike. So you do not need special toolings or new wallets for building or interacting with zkEVM.

Total Prize **(3 ETH split between 3 to 6 winners)**

**Detail Information:**
[https://polygontechnology.notion.site/ETHCon-2023-Polygon-Labs-Bounties-c1f02571faeb4242b264743b269260d7](url)

Sponsor Track: Polygon

Polygon Prize

**Bounty Criteria**

General Criteria:

- Evaluated on technical merit, relevance, and real-world applicability.

Project-Specific Criteria:

1. Bandada:
    - Effective utilization of back-end and front-ends.
    - Feedback on user experience.
2. Semaphore:
    - Creative applications of the Semaphore protocol.
    - Focus on anonymous group identities.
3. TLSNotary:
    - Effective utilization of the TLSNotary protocol.
    - Exploration of secure, private data sharing use-cases.

### Prize Allocation

- 1.2 ETH split between top projects, subject to judge discretion.
- 0.8 ETH open pool for substantial utilization of Bandada, Semaphore, or TLSNotary.

---

### Resources

Documentation:

- [Bandada Website](https://bandada.pse.dev/)
- [Bandada Github](https://github.com/privacy-scaling-explorations/bandada)
- [Semaphore Website](https://semaphore.appliedzkp.org/)
- [Semaphore Github](https://github.com/semaphore-protocol)
- [TLSNotary Website](https://tlsnotary.org/)
- [TLSNotary Github](https://github.com/tlsnotary/tlsn)

PSE Website: https://pse.dev/
Discord: [👉 Come here to ask for help!](https://discord.com/invite/sF5CT5rzrR) (hint: use the #ask-any-question channel)

We’re here to extend Ethereum. And because we are Ethereum-equivalent, almost anything you build for Ethereum, we can likely make use of! That goes both ways, building on Taiko naturally contributes upstream to the broader Ethereum space. So go deep and build something that pushes Ethereum and its overarching mission forward.

Comment

1 ETH **(split among maximum top 2 projects)**

Ideas to consider:

- Help further decentralize the L1 validator set with solo-staking tools and resources
- Get ahead of notable upgrades by contributing to efforts like enshrined-PBS, EIP-4844, etc.
- Something that meaningfully pushes forward the well-being of humanity

Sponsor Track: EF PSE

EF PSE Prize: General

EF PSE Prize: Project-Specific

Any approach to make user experience using smart contract better than before.

Also, as a developer it is quite hard to develop with confidence when it comes to 4337 validation rules.

1.5 ETH (split among maximum top 3 projects)

Requirements:

- Code needs to be viewable on GitHub
- should have working demo(script/video is acceptable)
- Need to cover any types of smart contract wallet(does not need to be 4337 related)

Criteria:

- Utility
- Innovative
- Bonus points on ERC4337 related projects
- Bonus points if you tested with known bundlers or sdk providers

**Ideas to consider:**

- Alternative cryptography to enable secure enclave based cryptography
- Metamask snap based erc4337 wallet
- Paymaster that can spend L1’s gas to execute L2’s userOp(or vice versa)
- MEV protected wallet
- Intent based 4337 wallet that can parse native language
- Security module for eip6900 compatible wallets
- foundry/hardhat plugin for erc4337 rule verification(static/dynamic)
- CLI for setting a test environment for erc4337

# **ERC4337 Brain teaser**

Surprise me with your skills. All you need to achieve is 1) you should be good at it 2) it should be related to erc4337

0.5 ETH (split among maximum top 1 project)

Requirements:

- Code needs to be viewable on GitHub
- should be related to ERC4337

Criteria

- Utility
- Technical skills required to build the project

Ideas to consider:

- {zk/huff/cairo/yul/bytecode} based {wallet/paymaster}
- elixer based erc4337 bundler
- MEV strategy for erc4337
- some gimmicks to reduce the gas cost

# **Get started building 🛠️**

Docs: https://eips.ethereum.org/EIPS/eip-4337

ERC4337 Mafia twitter : https://x.com/4337mafia

Ethcon Korea 2023

Ethcon Korea 2023