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gumdropsteve / SmartRPA

Neighbor to neighbor real estate transactions. Started in Nevada.
https://nevada-smart-rpa.herokuapp.com
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blockchain chainlink real-estate smart-contracts

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SmartRPA

Neighbor to neighbor real estate transactions.

Description

Selling a home can be a lot of fun. Selling a home can be a lot of not fun as well. Often, the difference is the ability of the most interested parties (Buyer and Seller) to know what is going on, and where they stand.

As a ERC-721 Non-Fungible Token contract, SmartRPA enables secure transparency for both the Homeowner (Seller) and Potential Buyers by integrating Chainlink time enforcement (Alarm Clock) with the trust of blockchain and existing document management systems (e.g. DocuSign).

It's really quite simple.

  1. A Seller posts their listing on-chain by deploying a SmartRPA.
  2. Potential Buyers submit the URL of their offer, and the number of days the Seller has to respond.
  3. Each Potential Buyers' submission returns them a unique SRPA token that's linked to their offer. They can use this to check its status.
  4. Once an offer is submitted, a Chainlink Alarm Clock is started with a clause check to see if it was accepted or countered within the offer's time limit.
    • If it was not, that offer's SRPA token is burned (transfering ownership from the Potential Buyer to no one) as the offer is no longer active.
    • If it was, a similar timer is started for the Counter Offer or for Close of Escrow and the token's offer URL becomes the SmartRPA's offer URL.

At any point, the Seller can see how many offers they have, when each expires, and securely access them through familiar standards. Listing on-chain also facilitates the use of cryptocurrencies or other digital assets as payment.

Demo

Live Demo

https://nevada-smart-rpa.herokuapp.com/

Video

https://youtu.be/MEANYygidyE

Architecture diagram

Architecture diagram

Getting Started

git clone https://github.com/gumdropsteve/SmartRPA

cd SmartRPA

npm install

truffle compile

truffle migrate --reset --network rinkeby -f 2

truffle run verify SmartRPA --network rinkeby --license MIT

Using the Testnets

What is a testnet?

TLDR: building on blockchain for free.

Since Ethereum is a protocol, this means there can be multiple independent "networks" conforming to this protocol that do not interact with each other.

Mainnet is the primary public Ethereum production blockchain, where actual-value transactions occur on the distributed ledger. When people and exchanges discuss ETH prices, they're talking about mainnet ETH.

In addition to mainnet, there are public testnets. These are networks used by protocol developers or smart contract developers to test both protocol upgrades as well as potential smart contracts in a production-like environment before deployment to mainnet. Think of this as an analog to production versus staging servers. - Etherium docs

To deploy and then interact with the contract, you'll need testnet LINK and testnet ETH tokens. We used the Rinkeby testnet, which means those tokens will need to come from Rinkeby faucets.

LINK tokens are used to pay node operators for retrieving data for smart contracts and also for deposits placed by node operators as required by contract creators. - Chainlink docs

All of this info is related to your wallet. Here's a 4 minute video for setting up your wallet if you don't already have one: https://youtu.be/P7FX_1PePX0

Ethereum (Rinkeby)

SRPA Token address: 0x6da11450865C6cff248E29D7f64Ce285c94590dD

Unit tests

To run the unit testing script

truffle test ./test/SmartRPA_test.js

The unit testing script will take you through each stage of the SRPA lifecycle. From initial offer creation from the buyer, to offer acceptance by the seller.

Front end

Front end repo: https://github.com/eserilev/smart-rpa-frontend

Long term vision

DAO and Revenue Generation

Liquidity