safeHODL

SafeHODL is a new crypto transfer solution that prioritizes privacy, security, and user-friendliness. By removing the need for a visible wallet address, SafeHODL ensures your privacy by preventing senders from seeing the assets you already own through the block explorer. It also offers the flexibility to withdraw locked assets to any address of your choice, making it accessible even for recipients who don’t yet have a web3 wallet.

When funds are locked, recipients are notified via email and can easily access their “lockbox.” SafeHODL’s vision includes expanding its features to enhance functionality and engagement. Future updates include time-locking assets, sending funds using phone numbers, and interactive features like a multi-password lockbox game designed for event attendees.

SafeHODL isn’t just a transfer solution—it’s a gateway to a more private, secure, and fun crypto experience.

So the smart contract is written in solidity, our CLI which is able to interact with 3 different chains: polygon, mantle, unichain is written in typescript. The cli is using figlet for some cool ascii art, the ethers library for connecting and managing the calls to the smart contract, and we are using the chalk library for pretty colourful outputs in the terminal. The mail service is receiving webhook events from the multibaas platform by curvegrid and the mail is sent using the mailer send api.

Lastly our UI is written in next js, we used the multibaas curvegrid sdk as well as their boilerplate for creating a sample app. We are using rainbow kit, wagmi and viem. The UI only supports the polygon chain, however in the next release we will be adding multichain support, so for now multichain support is only available through the cli.

The team was fuelled mostly by Lays chips and coca cola, we are all programming on Macbook pros #MSeries. Our presentation will be done in Canva, and and we will most likely record our presentation using the apple built in screen recording software. #yes.