Nexican
Cross-chain crowdfunding, Payroll and Split funds, powered by Avail Nexus SDK and EIP-7702.
Problem Statement
Nexican is a revolutionary decentralized cross-chain crowdfunding and payroll streaming platform that eliminates blockchain barriers and automates funding processes. Nexican enables users to fund projects across multiple blockchains seamlessly while providing automated team distribution and recurring payment capabilities.Core Problem We Solve: Fragmented Web3 Experience: Users struggle with multiple wallets, complex cross-chain interactions, and manual processes No Automation: Traditional crowdfunding lacks automated payroll, team distribution, and recurring payments Trust Issues: Lack of transparency in fund management and milestone tracking Complex UX: Difficult cross-chain interactions and asset managementOur Solution: Nexican provides a unified platform that combines: Cross-Chain Infrastructure: Seamless funding across Ethereum, Polygon, Arbitrum, Optimism, and Base EIP-7702 Automation: Automated recurring payments and payroll streaming DAO Governance: Community-driven campaign verification and milestone approval Smart Distribution: Automatic fund splitting among team members Unified Balance: Manage all assets across chains in one interfaceKey Features: Unified Balance Management: Users can manage assets across all supported chains from a single interface One-Click Cross-Chain Transfers: Seamless asset movement between blockchains Automated Payroll Streaming: EIP-7702 delegation for recurring team payments DAO Verification: Community-driven campaign approval for high-value projects (>$10K) Smart Team Distribution: Automatic fund splitting with flexible options (equal, percentage, custom) Real-Time Monitoring: Transaction tracking with Blockscout SDK integration Milestone Tracking: Transparent progress monitoring and fund releasesTarget Users: Web3 Projects: Teams seeking transparent, automated funding Contributors: Users wanting seamless cross-chain investment opportunities DAOs: Communities requiring automated payroll and fund distribution Developers: Teams needing automated recurring payments
Solution
Technology Stack & Architecture: FrontendNext.js 15 + TypeScriptBlockchain Integration (Core Innovation)Avail Nexus SDK: Advanced cross-chain infrastructure for unified balance managementSmart Contracts: EIP-7702 Solidity contracts implementing delegation, subscription management with recurring payments, and fund distributionHardhat 3: Development framework with native Node.js test runner and Viem integrationBlockscout SDK: Real-time transaction monitoring and notifications in appBackend & DatabaseMongoDB: Campaign data, user profiles, transaction records, and DAO governanceNext.js API Routes: RESTful API for campaign management and DAO operationsCross-Chain InfrastructureMulti-Network Support: Ethereum, Polygon, Arbitrum, Optimism, BaseUnified Balance: Real-time balance synchronization across all chains using Nexus Core SDKTransaction Monitoring: Blockscout SDK integration for comprehensive analyticsGas Optimization: Efficient cross-chain transaction handling with Intent modal and Min Allowance modalKey Technical Innovations:EIP-7702 ImplementationTime-based delegation for automated payrollSubscription management with flexible intervalsAvail Nexus SDK IntegrationUnified balance management across all supported chainsOne-click cross-chain transfers with real-time updatesBridging token across all supported chainsRecurring Payments with advanced cross-chain infrastructure for PayrollsSplit Payments among team membersSeamless user experience without wallet switchingDAO Governance SystemCommunity verification for high-value campaignsTransparent voting on milestone approvalsSecurity-first approach with role-based permissionsSmart Distribution AlgorithmFlexible split options: Equal, percentage-based, or custom distributionsReal-time updates for all team membersAutomated execution with smart contract automationTransparent reporting with detailed analyticsParticularly Hacky/Notable Features: 1. Cross-Chain State Synchronization with Nexus SDKReal-time balance updates (across supported chains)Event-driven architectureOptimistic updates for smooth user experienceEIP-7702 Automation Smart ContractsTime-based asset delegation without manual interventionSmart contract automation for recurring paymentsAccount abstraction for seamless user experienceGas optimization for cost-effective operationsDAO IntegrationOn-chain governance with off-chain coordinationSecurity-first design with multiple validation layersPartner Technology Benefits: Avail Nexus SDKAdvanced cross-chain infrastructure for seamless multi-blockchain operationsUnified balance management eliminating the need for multiple walletsReal-time synchronization across all supported chainsEnhanced user experience with one-click cross-chain transfersHardhatLeveraged Hardhat 3 for:Account abstraction for automated transactionsTime-based delegation for recurring paymentsEnhanced security with smart contract automationGas optimization for cost-effective operationsBlockscout SDKReal-time transaction monitoring with comprehensive analyticsCross-chain transaction history for complete transparencyAdvanced reporting for fund tracking and auditingIntegration with existing infrastructure for seamless monitoringDevelopment Process:Smart Contract Development: EIP-7702 delegation contracts with Hardhat 3Frontend Integration: Next.js 15 with Avail Nexus SDKCross-Chain Testing: Multi-network deployment and testingDAO Implementation: Community governance with MongoDB backendPerformance Optimization: Gas optimization and real-time updatesNotable Technical Achievements:Seamless cross-chain UX without wallet switchingAutomated payroll streaming with EIP-7702 delegationReal-time balance synchronization across 5+ blockchainsCommunity-driven governance with transparent fund managementSmart contract automation for recurring payments and team distributionNexican represents the future of Web3 funding - where cross-chain barriers are eliminated, automation is seamless, and community governance ensures transparency and trust.
Hackathon
ETHOnline 2025
2025
Contributors
- isha-mistry
17 contributions
- purvik6062
13 contributions