Motivation

This proposal suggests for the protocol to adopt and enforce a smart contract (SamuraiLicense - specified below) that enables, facilitates and provides access to a license pertaining to a newly developed product called ZenEstate.

ZenEstate represents a revolutionary self-hosted real estate listing and marketplace platform. ZenEstate shall provide a robust, white-label solution for businesses and entrepreneurs looking to leverage customizable, secure, and scalable real estate marketplace capabilities.

For ZenEstate to function as intended, the adoption of the SamuraiLicense is imperative. The smart contract enables the purchase, activation, and verification of on-chain ZenEstate licenses, ensuring seamless integration with the platform services.

The overall implementation, adoption and enforcement of ZenEstate aligns with the protocol's mission to leverage cutting-edge technology and grow its ecosystem and suite of products. The proposal and the associated implementation of the ZenEstate product further attempts to ensure that the Samurai protocol remains innovative and competitive across different verticals and sectors, as well as it attempts to introduce and implement a new, sustainable revenue model.

The product shall be exclusively available to Samurai Node NFT holders and xHNR token holders.

Specification

The scope of the product comprises of the following elements.

Platform Features

• Advanced property listing management system
• Customizable search and filtering capabilities
• User authentication and profile management
• Property multi-image upload function and handling
• Automated listing validation and gated verification moderation
• Buyer-Seller communication bridge

Tailored User Experience

• Customized UI/UX optimized for real estate marketplace operations
• Responsive design for desktop and mobile platforms
• Intuitive listing creation and management interface

Self-Hosting Capability

• Enables users to deploy ZenEstate on their preferred hosting environments, ensuring maximum control and security
• Support for various deployment configurations

Exclusive Access

Access to ZenEstate shall be exclusively facilitated for users meeting the following requirements:

• Holding a minimum of 1,000 Honour Nodes in their wallets for activation
• Acquiring a lifetime license for 1,000,000 xHNR to utilize the ZenEstate functionalities

This model reinforces the growing utility of xHNR tokens and Honour Node NFTs.

Custom Features

White-Labeling Support Complete branding customization capabilities Custom domain integration Tailored UI themes and layouts Customizable listing fields and categories Internationalization for any language via i18n

Performance and Scalability Built with modern technologies such as Node.js, PostgreSQL 16, and AWS S3 Optimized for handling large property databases Efficient image upload and processing Real-time search indexing via Google Maps Platform

Modular Functionality Extensible platform architecture API integration capabilities Custom feature development support

Smart Contract Requirements

SamuraiLicense Contract

• Facilitates the on-chain purchase and management of ZenEstate licenses
• Verifies user eligibility for ZenEstate access through cryptographically signed messages
• Manages license activation and verification

License Activation

• Requires a one-time purchase of 1,000,000 xHNR to secure a lifetime ZenEstate license
• Ensures validation and integration with platform systems to check license ownership

Deployment Options

Hosting Flexibility

• Support for major cloud providers (AWS, Google Cloud, DigitalOcean)
• Local hosting capabilities

Platform Compatibility

• Linux support for production deployments
• macOS support for development and testing
• Comprehensive deployment documentation

Revenue Model

License Fee One-time payment of 1,000,000 xHNR for a lifetime ZenEstate license Collected fees are directed to the protocol's treasury to sustain and enhance operations

No Recurring Costs Users retain full ownership and control over ZenEstate functionalities No additional subscription charges or hidden fees

Implementation Approach

Platform Engineering Core Platform Engine Development Property listing management system Search and filtering engine with Google Maps Platform User authentication system via OAuth 2.0 Image handling system via Multer and S3

Frontend Development Responsive web interface White-label theming system User listing interface Styling with cutting edge Tailwind CSS Internationalization mechanism for any language via i18n

Distribution Detailed technical documentation Compilation of the core platform engine Preparing frontend repository configuration for easier setup

Smart Contract Engineering Adaptation of SamuraiLicense contract for ZenEstate Implementation of license verification system Integration with setup installation access authentication

The smart contract implementation will utilize the existing SamuraiLicense contract structure, maintaining compatibility with the protocol's existing infrastructure while adding specific verifications for ZenEstate access and functionality.

The proposed Solidity code / smart contracts

Pre-compiled contract:

// SPDX-License-Identifier: MIT pragma solidity 0.8.13;

import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/interfaces/IERC20.sol"; import "@openzeppelin/contracts/interfaces/IERC721Enumerable.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "./IUniswapV2Router02.sol";

contract SamuraiLicense is Ownable, Pausable { IERC20 public xhnr; IERC721Enumerable public hnrNodes; IUniswapV2Router02 public uniswapV2Router;

uint256 public threshold; uint256 public feeRate; uint256 public licenseCost;

mapping(address => bool) public licenses;

using SafeMath for uint256;

constructor( address _xhnr, address _hnrNodes, address _uniswapV2Router, uint256 _threshold, uint256 _feeRate, uint256 _licenseCost ) { xhnr = IERC20(_xhnr); hnrNodes = IERC721Enumerable(_hnrNodes); uniswapV2Router = IUniswapV2Router02(_uniswapV2Router); threshold = _threshold; feeRate = _feeRate; licenseCost = _licenseCost; }

receive() external payable virtual { // }

function buyLicense() external whenNotPaused { address sender = msg.sender; require(hnrNodes.balanceOf(sender) >= threshold, "Contract: not a holder!"); bool existingLicense = licenses[sender]; // fail if license already exists require(!existingLicense, "Contract: license already active!"); // charge the subscription xhnr.transferFrom(sender, address(this), licenseCost); uint256 fee = licenseCost.mul(feeRate).div(100); // take the fee swapTokensForEth(fee); licenses[sender] = true; }

function isLicensed() external view returns (bool) { return licenses[msg.sender]; }

function swapTokensForEth(uint256 tokenAmount) private { address[] memory path = new address; path[0] = address(xhnr); path[1] = uniswapV2Router.WETH();

xhnr.approve(address(uniswapV2Router), tokenAmount);

uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); }

// owner related function setLicenseCost(uint256 _licenseCost) external onlyOwner { licenseCost = _licenseCost; }

function setThreshold(uint256 _threshold) external onlyOwner { threshold = _threshold; }

function setFeeRate(uint256 _feeRate) external onlyOwner { feeRate = _feeRate; }

function release() external onlyOwner { xhnr.transfer(owner(), xhnr.balanceOf(address(this))); }

function releaseNative() external onlyOwner { payable(owner()).transfer(address(this).balance); }

function pause(bool en) external onlyOwner { en ? _pause() : _unpause(); } }