ETHGlobal

ETHGlobal Brussels

Scroll

$10,000

About

Scroll is a zero-knowledge rollup built to scale Ethereum. We're committed to Ethereum's ethos, and like to call ourselves the community-first zkEVM. If you’re experienced in building on Ethereum, your code, dependencies, and tooling work with Scroll out of the box. This is possible because our network is compatible with EVM bytecode and designed to feel just like developing on Ethereum.

Prizes

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🧪 Best Build Reading L1 State with L1SLOAD ⸺ $4,000

Up to 2 teams will receive $2,000

More interested in experimental work? Build on Scroll’s latest research for bringing new possibilities to L2 dApps, allowing them to read directly from L1. Deploy an app on our devnet using L1SLOAD, a precompile contract that allows L2 contracts to read state storage slots on L1. Build something interesting or novel or something that imagines a future when every L2 can do the same. Check out the L1SLOAD guide linked below for usecase ideas and a faucet.

Qualification Requirements

- Project contracts must be deployed on Scroll’s L1SLOAD Devnet and verified on its Blockscout deployment. - Deployed contract addresses much be included in your repo’s README. - Project must utilize the L1SLOAD precompile to read state from Sepolia.

Links and Resources

L1SLOAD Guide

https://scrollzkp.notion.site/L1SLOAD-Guide-2be3c335005b4bd28da38c62cf3e6a9b?pvs=4

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RIP-7728: L1SLOAD precompile

https://ethereum-magicians.org/t/rip-7728-l1sload-precompile/20388

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L1SLOAD Devnet Blockscout

https://l1sload-blockscout.scroll.io/

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Guide: How to use L1SLOAD, the Keystore backbone

https://dev.to/filosofiacodigoen/how-to-use-l1sload-the-keystores-backbone-25ah

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📜 Best Project on Scroll ⸺ $6,000

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Winner

$3,000

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Runner-up

$1,500 ×2

You're here to build the latest and greatest in web3 on Ethereum — we want to see it deployed on Scroll. Use Scroll's Sepolia Testnet for your novel and creative dApp — 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.

Qualification Requirements

Project contracts must be deployed on Scroll Sepolia or Scroll L1SLOAD Devnet and verified on the Scroll Sepolia Etherscan or L1SLOAD Blockscout. Deployed contract addresses much be included in your repo’s README.