{"repo":"ScopeLift/umbra-protocol","free":true,"listed":false,"github":"https://github.com/ScopeLift/umbra-protocol","clone":"git clone https://github.com/ScopeLift/umbra-protocol.git","description":"🌕🌑 Privacy Preserving Shielded Payments On The Ethereum Blockchain","language":"TypeScript","stars":402,"topics":["ethereum","privacy","smart-contracts","defi"],"license":"MIT","category":"blockchain-web3","readme_excerpt":"Privacy Preserving Stealth Payments for EVM Blockchain Networks. 🚀 app.umbra.cash 🐦 @UmbraCash 💬 Discord 🤑 Gitcoin 🏗️ @ScopeLift About Umbra is a protocol for stealth payments on EVM blockchain networks. It enables privacy preserving transactions where the receiver's identity is only known to the sender and receiver . FAQ What is Umbra? Umbra is a stealth address protocol for EVM networks. That means it allows a payer to send funds to a fresh address. That address is controlled by the intended receiver, but only the payer and the receiver know that. One way to think of Umbra is this: before anyone sent you funds, you sent them a brand new, never before used address. Only the sender would know you control that address, which adds a layer of privacy to your payment. Payments via Umbra work similarly, but are non-interactive—you don’t need to give someone a fresh address, the sender can just generate one they know only you will be able to access. Can you walk me through an example? Alice owns a business and hires Bob to subcontract for her. She agrees to pay Bob 1,000 Dai/week for his work. Bob owns the ENS address bob.eth. If Alice sent the funds each week to bob.eth, anyone looking at the chain could trivially know that Alice is paying Bob 1,000 Dai each week. Instead, Bob and Alice will use Umbra for private payments. The first time Bob visits the Umbra app, he sets up his account, enabling anyone to privately pay him via Umbra using the name bob.eth, or his normal Ether","default_branch":null,"files":null,"tree":[],"storefront":"/r/ScopeLift","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/ScopeLift/umbra-protocol/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}