Cryptocurrency-enabled Digital Goods Marketplace

₹12500-37500 INR

Fermé

Publié il y a 30 jours

₹12500-37500 INR

Payé lors de la livraison

Product Overview P2P Crypto Marketplace for Digital Goods A decentralized, escrow-backed peer-to-peer marketplace enabling users to safely trade digital goods (subscriptions, gift cards, licenses, accounts) using cryptocurrency, launched as a Telegram Mini App for instant global reach. The platform eliminates trust issues in digital goods trading by combining KYC verification, smart-contract escrow, and multi-step trade validation. Core Value Proposition Trade digital goods globally with crypto—without trust, fraud, or delays. No chargebacks No middleman holding funds No long onboarding Built for crypto users, not adapted for them How It Works (Trade Flow) User Verification Telegram login (one-tap) Mandatory KYC (basic → advanced tiers) Wallet connection (EVM-compatible) Trade Creation Seller lists digital asset (subscription, gift card, etc.) Buyer initiates trade Funds are locked in smart-contract escrow 3-Step Escrow Verification Asset Delivery Confirmation Buyer receives the digital good Buyer Verification Window Time-based inspection period Final Settlement Success → funds released to seller Dispute → arbitration system triggered Security & Trust Layer Smart Contract Escrow Non-custodial Funds locked on-chain No admin withdrawal access Fraud Prevention KYC + wallet reputation scoring Trade limits for new users Seller history & success rate Dispute Resolution Evidence-based arbitration Moderator / DAO-ready framework (future) Partial or full refunds supported Telegram Mini App Advantage Why Telegram is the perfect launchpad: Instant access (no app install) Millions of crypto-native users Lower CAC via Telegram Ads Seamless wallet & bot integration Global reach without app store restrictions This significantly reduces friction compared to web or native apps. Suggested Tech Architecture Frontend Telegram Mini App (WebApp API) React / [login to view URL] WalletConnect / Telegram Wallet SDK Backend Node.js / Java Spring Boot REST + WebSocket for live trades Redis for trade state management Blockchain Layer EVM chain (Polygon / BSC / Arbitrum) Solidity-based escrow contracts Upgradeable contract pattern Compliance & KYC Third-party KYC provider Encrypted user identity storage Region-based compliance rules

N° de projet : 40230489

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2 propositions

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Actif à il y a 30 jours

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2 freelances proposent en moyenne ₹23 750 INR pour ce travail

@vishal1145

Your escrow logic will fail under network congestion if you're not handling gas price spikes and transaction timeouts. I've seen marketplaces lose $40K in locked funds during Polygon network delays because they didn't implement fallback mechanisms for failed contract calls. Before architecting the solution, I need clarity on two things: What's your strategy for handling failed escrow releases when gas fees spike 10x during network congestion? And are you planning multi-chain deployment from day one, or starting with a single EVM chain and migrating later? Here's the architectural approach: - SOLIDITY SMART CONTRACTS: Build upgradeable escrow contracts using OpenZeppelin's proxy pattern with emergency withdrawal functions and time-locked dispute resolution to prevent fund lockups during edge cases. - SPRING BOOT + REDIS: Implement event-driven architecture with Redis pub/sub to track trade state transitions in real-time and handle webhook retries from blockchain nodes without data loss. - TELEGRAM MINI APP + REACT: Build the WebApp interface with WalletConnect integration and optimistic UI updates so users see instant feedback while transactions confirm on-chain. - MYSQL + BLOCKCHAIN INDEXING: Set up dual-write pattern where critical trade data lives both on-chain and in MySQL with event listeners syncing state to handle chain reorganizations. - KYC + WALLET REPUTATION: Integrate Sumsub or Onfido APIs with tiered verification levels and build a reputation scoring system that flags suspicious wallet patterns before funds enter escrow. I've built 3 crypto marketplaces that processed $2M+ in escrow transactions without a single fund loss incident. Let's schedule a 20-minute technical call to walk through your dispute resolution logic and gas optimization strategy before you commit to a contract architecture.

₹22 500 INR en 7 jours