DANARI Stablecoin Whitepaper

1. Project Overview

DANARI is a stablecoin project backed by real-world assets. The project aims to build a real-world-linked payment system usable across all company-operated business sites through a digital currency (DUSD) issued against the company's assets as collateral.

2. Problem Definition

• Increasing demand for a cashless internal economic system.
• Lack of trust in unstable coins not linked to real-world assets.
• Absence of a consistent payment method across various stores (restaurants, billiard halls, spas, etc.) within all company-operated business sites.

3. DANARI's Solution

3.1 Backed by Real-World Assets

DANARI issues a stablecoin with a value of 1 DUSD = 1 KRW, collateralized by the company's assets. Token issuance is permitted only within the value of the company's real-world assets.

3.2 Internal QR Payment System

All payments are made via QR codes through the DANARI mobile app. Users and all company-operated business sites can make and receive payments in real-time through the app or web.

3.3 On-Chain Records

DANARI is issued via an ERC-20 based smart contract, and all issuance, burning, and transfers are transparently recorded on the blockchain.

4. Technical Architecture

4.1 Smart Contract

• Base: ERC-20 DanariStableToken contract
• Decimals: 8
• Total Supply: No limit (manually controlled based on collateral)
• Permissions: Minter rights based on MINTER_ROLE

4.2 Backend System

• Server: Admin API server (based on FastAPI)
• Functions: mint, burn, log inquiry, internal auditing

4.3 User Application

• Platform: Flutter-based mobile app (with MetaMask integration)
• Key Feature: Includes QR payment scanning/generation

4.4 Admin Dashboard

• Platform: React-based web dashboard
• Functions: Visualization of issuance volume, store balances, and transaction logs

5. Token Information (DUSD)

Item	Value
Name	Danari Stable USD
Symbol	DUSD
Total Supply	Flexible (Manually Controlled)
Decimals	8
Smart Contract Address	(Deployed on Sepolia testnet)

6. Use Case

1. A user tops up 10,000 KRW to DANARI → receives 10,000 DUSD.
2. Makes a payment of 6,500 KRW at a company-operated business site → transfers 6,500 DUSD via QR scan.
3. The remaining balance can be freely used at spas, convenience stores, billiard halls, etc.

7. Collateral & Audit

• DANARI issues tokens based on real-world asset collateral.
• The valuation of collateral assets is periodically reviewed by an accounting firm or an audit system.
• All issuance and burning are controlled via an admin API, and the smart contract is transparently public.

8. Roadmap

Quarter	Objective
2025 Q3	MVP development, testnet deployment, internal pilot operation
2025 Q4	Application to live environment (entire hotel)
2026 Q1	Expansion to external merchants, integration of KYC and legal certification

9. Conclusion

DANARI is a reliable stablecoin issued based on real-world assets, providing a payment infrastructure that starts in a fixed space—all company-operated business sites—and can gradually expand to external services. It offers a realistic alternative for users who want transparent and secure blockchain payments backed by real-world collateral.

This whitepaper is based on the DANARI MVP and may be supplemented with further system enhancements and audit reports in the future.