The problem Cross-Chain ⛓️ Worldcoin 👀 AA Wallet 👛 solves

Problems

• Seed Phrase 🤔 : Can I use my biometric information to transact on web3?​

• Multi Device:📱🖥💻: Can I use a single wallet in any device without importing seed phrases? I don't want to compromise on security!

• Fragmented Chains 🔗‍💥: what if I want to use a single wallet for all EVM chains without going through multiple transactions?

• Bots 🤖 vs. Humans 😊: Hard to differentiate which account is a bot vs human

Solutions

• Bye Bye Seed Phrase 👋: Use your Worldcoin biometric account to send transaction. It's secured by ZK proof!

• Multi Device 📱🖥: Just use your face to control your AA wallet from any device! Call any EVM function

• Chain Agnostic Wallet ⛓️: Your wallet talks to other chains (Gnosis Chain and Aurora). No need to approve, transfer, and bridge via multiple & cross-chain transactions. It's done by one click.

• Verified as Real Human 😀: Using Worldcoin ensures that the owner is a human

See our live demo on YouTube!

Challenges we ran into

1. Setting up the environment for Worldcoin had a lot of gotchas. But thankfully, the staff helped us a lot. The staging environment was not smooth, and we had to use the production environment on Polygon with a real person who authenticated on orb. Verifying the data on chain was a difficult to figure out. We were the first one on chain to verify!!

• World's first worldcoin onchain verification: https://polygonscan.com/tx/0x5b4faca67d37537575f34ffc9ca9d15cec2f9126b19cdc1c1375c895130a4eaf

2. Crosschain call data calls were hard to debug. Estimating the gas cost for crosschain calls, and making sure that the transaction runs on the destination chain was a challenge.

3. Transacting on AA wallet was a bit hard to debug what when wrong, and hooking it up to the UI was a bit challenging.