ETHGlobal

ETHGlobal Bangkok

vlayer Labs

$10,000

About

We are on a mission to bridge the gap between Web2 and Web3. We are building a new category - verifiable data infrastructure. Our all-in-one infrastructure layer allows Solidity developers to extract, verify and integrate real-world data into Ethereum smart contracts, in the form of trustless claims. By integrating Web2 data i.e. Web Proofs and Email Proofs, into Web3 apps, we support a decentralised, secure, and efficient internet. Our technology is powered by state-of-the-art Zero Knowledge Proofs (ZKPs) and optimised to provide the best developer experience on EVM-compatible blockchains. Our four Solidity features (i.e. vlayer superpowers): - Time Travel - Leverage history of on-chain data in your contracts. - Teleport - Compute cross-chain data from EVMs. - Web Proofs (also known as zkTLS) - Bring private Web2 data on-chain. - Email Proofs (also known as ZK Email) - Tap into the trusted contents of emails. Benefits of building with vlayer: - You can use Solidity and existing tooling, such as Foundry - No needs to learn new DSLs or programming languages - Access key data sources directly from your Solidity smart contract on any EVM-compatible blockchain

Prizes

▼

🦸 Most inspiring use of vlayer Solidity superpowers ⸺ $4,000

Create a dApp that uses verifiable data in on-chain contracts. Examples: - Airdrop for successful DeFi traders - Proof of contribution to a DAO or GitHub to be eligible for an airdrop - Consumer facing app where email can be used for AA wallet recovery - An RWA use case, such as attesting ownership of certain items using Email Proofs or Web Proofs

Qualification Requirements

This application has it all - a great idea and best-in-class implementation. The application must use at least one of vlayer’s Solidity four superpowers, as well as incorporating both Prover and Verifier contracts.

▼

🌐 Best use of Web Proofs ⸺ $2,000

Demonstrate how private data coming from web2 services can be used on-chain. Examples: - Proof of balance in Revolut/PayPal - Proof of MRR/ARR in Stripe/Shopify

Qualification Requirements

The application must use vlayer Web Proofs, as well as incorporating both Prover and Verifier contracts.

▼

📧 Best use of Email Proofs ⸺ $2,000

Demonstrate how data from emails can be used on-chain. Examples: - Controlling AA wallets using email - An NFT airdrop for individuals that own an email address with a certain email domain

Qualification Requirements

The application must use vlayer Email Proofs, as well as incorporating both Prover and Verifier contracts.

▼

🌀 Best use of Time Travel OR Teleport ⸺ $2,000

Demonstrate how historical and cross-chain data can be used on-chain. Examples: - Generate credit score for wallets using USDC or other ERC20 tokens - Rewards and airdrops for owners of specific NFTs or ERC20 tokens