esaminu

I wanted to show you guys EmailBTC, an app I’ve been working on for some time. It lets you send and receive bitcoin using just email addresses simplifying onboarding and making it super easy to use + send and receive.

I think for a lot of non crypto folks crypto is this scary new thing because the onboarding and usage experience is really novel. Upon introduction you have to write down your 12 words and we put scary messages everywhere about it. And then when you want to send and receive you have to transmit this complex combination of numbers and letters to someone and get it exactly right. Often people (myself included) will send a test transaction to make sure they have the right address.

EmailBTC aims to solve that by

   1. Making the onboarding experience super familiar

   2. Making basic usage (sending and receiving) super familiar and hard to get wrong

EmailBTC uses NEAR chain signatures behind the scenes. In the simplest terms, this technology allows you to sign things using non-existent private keys controlled by a well audited, distributed mpc network of nodes. To get a signature you pass in a derivation path which could be any string. And the mpc network prefixes the derivation path with the caller’s account Id so that derivation paths are scoped to you and can’t be accessed by other accounts.

EmailBTC submits a zero knowledge proof of your google token signature to a smart contract which then calls the mpc network after verification using your email address in the derivation path. This allow it to derive any Bitcoin signature using your token which is never submitted on chain, and your Bitcoin address can be computed using just your email address

Disclaimer

   • We are still pending an audit of the smart contract so please don’t store large amounts of money on it just yet

   • Testnet addresses can be changed at any time. The MPC network does not guarantee the same keys on testnet

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