Nexican

Cross-chain crowdfunding, Payroll and Split funds, powered by Avail Nexus SDK and EIP-7702.

Nexican

Created At

ETHOnline 2025

Project Description

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 management

Our 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 interface

Key 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 releases

Target 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

How it's Made

Technology Stack & Architecture: Frontend 

  • Next.js 15 + TypeScript

Blockchain Integration (Core Innovation)

  • Avail Nexus SDK: Advanced cross-chain infrastructure for unified balance management
  • Smart Contracts: EIP-7702 Solidity contracts implementing delegation, subscription management with recurring payments, and fund distribution
  • Hardhat 3: Development framework with native Node.js test runner and Viem integration
  • Blockscout SDK: Real-time transaction monitoring and notifications in app

Backend & Database

  • MongoDB: Campaign data, user profiles, transaction records, and DAO governance
  • Next.js API Routes: RESTful API for campaign management and DAO operations

Cross-Chain Infrastructure

  • Multi-Network Support: Ethereum, Polygon, Arbitrum, Optimism, Base
  • Unified Balance: Real-time balance synchronization across all chains using Nexus Core SDK
  • Transaction Monitoring: Blockscout SDK integration for comprehensive analytics
  • Gas Optimization: Efficient cross-chain transaction handling with Intent modal and Min Allowance modal

Key Technical Innovations:

  1. EIP-7702 Implementation
  • Time-based delegation for automated payroll
  • Subscription management with flexible intervals
  1. Avail Nexus SDK Integration
  • Unified balance management across all supported chains
  • One-click cross-chain transfers with real-time updates
  • Bridging token across all supported chains
  • Recurring Payments with advanced cross-chain infrastructure for Payrolls
  • Split Payments among team members
  • Seamless user experience without wallet switching
  1. DAO Governance System
  • Community verification for high-value campaigns
  • Transparent voting on milestone approvals
  • Security-first approach with role-based permissions
  1. Smart Distribution Algorithm
  • Flexible split options: Equal, percentage-based, or custom distributions
  • Real-time updates for all team members
  • Automated execution with smart contract automation
  • Transparent reporting with detailed analytics

Particularly Hacky/Notable Features: 1. Cross-Chain State Synchronization with Nexus SDK

  • Real-time balance updates (across supported chains)
  • Event-driven architecture 
  • Optimistic updates for smooth user experience
  1. EIP-7702 Automation Smart Contracts
  • Time-based asset delegation without manual intervention
  • Smart contract automation for recurring payments
  • Account abstraction for seamless user experience
  • Gas optimization for cost-effective operations
  1. DAO Integration
  • On-chain governance with off-chain coordination
  • Security-first design with multiple validation layers

Partner Technology Benefits: Avail Nexus SDK

  • Advanced cross-chain infrastructure for seamless multi-blockchain operations
  • Unified balance management eliminating the need for multiple wallets
  • Real-time synchronization across all supported chains
  • Enhanced user experience with one-click cross-chain transfers

Hardhat

  • Leveraged Hardhat 3 for:
    • Account abstraction for automated transactions
    • Time-based delegation for recurring payments
    • Enhanced security with smart contract automation
    • Gas optimization for cost-effective operations

Blockscout SDK

  • Real-time transaction monitoring with comprehensive analytics
  • Cross-chain transaction history for complete transparency
  • Advanced reporting for fund tracking and auditing
  • Integration with existing infrastructure for seamless monitoring

Development Process:

  1. Smart Contract Development: EIP-7702 delegation contracts with Hardhat 3
  2. Frontend Integration: Next.js 15 with Avail Nexus SDK
  3. Cross-Chain Testing: Multi-network deployment and testing
  4. DAO Implementation: Community governance with MongoDB backend
  5. Performance Optimization: Gas optimization and real-time updates

Notable Technical Achievements:

  • Seamless cross-chain UX without wallet switching
  • Automated payroll streaming with EIP-7702 delegation
  • Real-time balance synchronization across 5+ blockchains
  • Community-driven governance with transparent fund management
  • Smart contract automation for recurring payments and team distribution

Nexican represents the future of Web3 funding - where cross-chain barriers are eliminated, automation is seamless, and community governance ensures transparency and trust.

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