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ChainLink Hackathon Drafts
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PRD.md

Product Requirements Document: SocialChain

ChainLink Hackathon Project

Version: 1.0
Date: February 3, 2026
Team: [Your Team Name]
Project Category: DeFi & Social Integration

Executive Summary

SocialChain is a decentralized social payment and NFT marketplace platform that integrates crypto transactions directly into X (formerly Twitter). Users can send cryptocurrency to anyone by posting a tweet, claim received funds through a web dashboard, and participate in NFT auctions entirely through social media interactions. The platform leverages ChainLink's Cross-Chain Interoperability Protocol (CCIP) to enable seamless multi-chain transactions and ChainLink Automation for trustless auction settlements.

Core Value Proposition:

  • Frictionless crypto payments via social media posting
  • No wallet required to receive funds initially
  • Social-native NFT auctions without leaving X
  • Multi-chain support powered by ChainLink CCIP
  • Gas-free claiming for better user onboarding

Hackathon Requirements Alignment

ChainLink Integration (Mandatory)

  • ChainLink CCIP: Cross-chain token transfers for multi-blockchain payment support (Ethereum, Polygon, Arbitrum, Base, etc.)
  • ChainLink Automation: Automated NFT auction settlement and payment distribution
  • ChainLink Functions: Off-chain computation for X API verification and social graph validation
  • ChainLink Data Feeds: Real-time price oracles for multi-currency support and auction valuation

Requirement Met: Platform uses ChainLink services to make state changes on blockchain, satisfying core hackathon eligibility[1].

Problem Statement

Current blockchain payment and NFT trading systems face significant adoption barriers:

  1. Wallet Friction: New users must set up wallets, manage seed phrases, and understand blockchain concepts before participating
  2. Fragmented Experience: Users must leave social platforms to access DeFi services
  3. Cross-Chain Complexity: Sending assets across different blockchains requires technical knowledge and multiple transactions
  4. NFT Trading Barriers: Traditional NFT marketplaces lack social discovery and require navigating unfamiliar interfaces
  5. Payment Discoverability: Finding wallet addresses on social media is cumbersome and error-prone

Solution Overview

SocialChain creates a social-first crypto experience where blockchain transactions happen naturally through familiar social media interactions.

Core Features

Visual Overview

graph LR
    A[Tweet Payment] --> B[Claim Dashboard]
    A --> C[NFT Auction]
    B --> D[Multi-Chain Support]
    C --> D
    D --> E[ChainLink CCIP]
    
    style A fill:#10b981
    style C fill:#f59e0b
    style E fill:#375bd2
Loading

1. Tweet-to-Pay System

Payment Flow Diagram:

sequenceDiagram
    participant S as Sender
    participant X as X/Twitter
    participant B as SocialChain Bot
    participant SC as Smart Contract
    participant R as Recipient
    participant D as Dashboard
    
    S->>X: Post "@SocialChainBot send 10 USDC to @recipient"
    X->>B: Webhook notification
    B->>B: Parse & validate command
    B->>SC: Escrow funds + metadata
    SC-->>B: Transaction confirmed
    B->>X: Reply confirmation
    B->>R: Mention notification
    R->>D: Visit claim link
    D->>X: OAuth authentication
    D->>R: Connect/create wallet
    R->>SC: Claim transaction
    SC->>R: Transfer funds
    SC-->>B: Emit ClaimEvent
    B->>X: Post success tweet
    
    Note over S,R: Cross-chain via ChainLink CCIP
Loading

User Flow:

  1. Sender posts a tweet with specific syntax: @SocialChainBot send 10 USDC to @recipient
  2. Bot detects tweet via X API monitoring
  3. Smart contract escrows funds with transaction metadata
  4. Recipient gets notified via tweet mention
  5. Recipient visits dashboard, connects X account, creates/connects wallet
  6. Funds released from escrow to recipient's wallet

Key Benefits:

  • Sender needs only wallet connection
  • Recipient needs nothing initially (low barrier to entry)
  • Public social proof of transaction
  • Built-in dispute resolution through tweet history

2. NFT Social Auctions

Auction Lifecycle Diagram:

stateDiagram-v2
    [*] --> Created: Owner posts auction tweet
    Created --> Active: Smart contract initialized
    Active --> BidPlaced: User replies with bid
    BidPlaced --> Active: Not ended
    BidPlaced --> PendingSettlement: Time expired
    PendingSettlement --> Settled: ChainLink Automation
    Settled --> [*]: NFT + payment transferred
    Active --> Cancelled: Owner cancels
    Cancelled --> [*]: NFT returned
    
    note right of PendingSettlement
        ChainLink Keeper
        monitors auction end time
    end note
Loading

Auction Creation Flow:

  1. NFT owner posts: @SocialChainBot auction [NFT-ID] starting 1 ETH, 24h duration
  2. Bot verifies ownership and creates on-chain auction contract
  3. Auction tweet posted with NFT details and embedded image

Bidding Flow:

  1. Bidders reply to auction tweet: @SocialChainBot bid 1.5 ETH
  2. Smart contract records bid and locks funds
  3. Previous bidder's funds auto-released
  4. Current highest bid displayed in real-time via bot replies

Settlement:

  • ChainLink Automation triggers settlement at auction end
  • NFT transferred to winner
  • Payment to seller
  • Timeline posted to original auction thread

3. Multi-Chain Dashboard

Dashboard Features:

  • Claim Center: View all pending payments across all chains
  • Wallet Management: Connect/create wallets, bind to X account
  • Transaction History: Complete social payment timeline
  • Active Auctions: Manage created auctions and bids
  • NFT Portfolio: View owned NFTs available for auction
  • Analytics: Track payment patterns, auction performance

Technical Architecture

System Components

Component Technology Stack
Frontend Next.js 15, React 19, TailwindCSS 4, Wagmi v2, RainbowKit v2, TanStack Query v5
Backend API Node.js 20, Express 5, PostgreSQL 16, Redis 7 (caching)
Smart Contracts Solidity 0.8.20+, Hardhat, Foundry, OpenZeppelin v5
Social Integration X API v2, Twitter OAuth 2.0
ChainLink Services CCIP, Automation, Functions, Data Feeds
Blockchain Networks Ethereum (mainnet), Polygon, Arbitrum, Base, Optimism
IPFS Storage NFT metadata and transaction receipts
Build Tools Turbopack (Next.js 15 default), TypeScript 5.3

Table: Technology stack for SocialChain platform

System Architecture Diagram

graph TB
    subgraph "Frontend Layer"
        A[Next.js 15 App Router]
        B[RainbowKit v2 Wallet UI]
        C[TanStack Query State]
    end
    
    subgraph "Backend Layer"
        D[Express API Server]
        E[PostgreSQL Database]
        F[Redis Cache]
        G[X API Integration]
    end
    
    subgraph "Blockchain Layer"
        H[PaymentEscrow.sol]
        I[NFTAuction.sol]
        J[CCIPBridge.sol]
    end
    
    subgraph "ChainLink Services"
        K[CCIP Cross-Chain]
        L[Automation Keeper]
        M[Functions Oracle]
        N[Data Feeds Price]
    end
    
    subgraph "External Services"
        O[X Twitter Platform]
        P[IPFS Storage]
        Q[Multi-Chain Networks]
    end
    
    A --> B
    A --> C
    A --> D
    B --> H
    B --> I
    D --> E
    D --> F
    D --> G
    G --> O
    H --> K
    I --> L
    D --> M
    H --> N
    J --> K
    H --> Q
    I --> Q
    I --> P
    
    style A fill:#38bdf8
    style K fill:#375bd2
    style L fill:#375bd2
    style M fill:#375bd2
    style N fill:#375bd2
Loading

Smart Contract Architecture

Contract Interaction Diagram:

graph TB
    subgraph "User Contracts"
        A[PaymentEscrow.sol]
        B[NFTAuction.sol]
        C[CCIPBridge.sol]
    end
    
    subgraph "ChainLink Contracts"
        D[Router.sol CCIP]
        E[AutomationRegistry.sol]
        F[FunctionsRouter.sol]
        G[AggregatorV3.sol]
    end
    
    subgraph "External Contracts"
        H[ERC20 Tokens]
        I[ERC721 NFTs]
    end
    
    A -->|Lock tokens| H
    A -->|Cross-chain send| C
    C -->|Message passing| D
    B -->|Lock NFT| I
    B -->|Register upkeep| E
    E -->|Trigger settle| B
    A -->|Verify tweet| F
    B -->|Get price| G
    
    style D fill:#375bd2
    style E fill:#375bd2
    style F fill:#375bd2
    style G fill:#375bd2
Loading

PaymentEscrow.sol

// Core payment escrow with CCIP support
contract PaymentEscrow {
    mapping(bytes32 => Payment) public payments;
    
    struct Payment {
        address sender;
        string recipientTwitterHandle;
        uint256 amount;
        address token;
        uint256 sourceChain;
        uint256 timestamp;
        bool claimed;
    }
    
    function sendPayment(
        string memory recipientHandle,
        uint256 amount,
        address token,
        uint64 destinationChain
    ) external payable;
    
    function claimPayment(
        bytes32 paymentId,
        address recipientWallet,
        bytes memory twitterProof
    ) external;
}

NFTAuction.sol

// Automated NFT auction with ChainLink integration
contract NFTAuction {
    struct Auction {
        address nftContract;
        uint256 tokenId;
        address seller;
        string tweetId;
        uint256 startPrice;
        uint256 highestBid;
        address highestBidder;
        uint256 endTime;
        bool settled;
    }
    
    function createAuction(
        address nftContract,
        uint256 tokenId,
        uint256 startPrice,
        uint256 duration,
        string memory tweetId
    ) external returns (uint256 auctionId);
    
    function placeBid(
        uint256 auctionId,
        string memory bidTweetId
    ) external payable;
    
    // Called by ChainLink Automation
    function settleAuction(uint256 auctionId) external;
}

CCIPBridge.sol

// Cross-chain payment routing via ChainLink CCIP
contract CCIPBridge {
    IRouterClient public router;
    
    function sendCrossChainPayment(
        uint64 destinationChain,
        address recipient,
        uint256 amount,
        address token
    ) external payable returns (bytes32 messageId);
    
    function _ccipReceive(
        Client.Any2EVMMessage memory message
    ) internal override;
}

ChainLink Integration Details

1. CCIP for Cross-Chain Transfers

Use Case: User sends USDC on Polygon, recipient claims on Arbitrum

Implementation:

  • Lock-and-mint mechanism for cross-chain transfers
  • Token pool management for supported assets
  • Message passing for payment metadata
  • Rate limiting for security[3]

Supported Chains:

  • Ethereum Mainnet
  • Polygon
  • Arbitrum
  • Optimism
  • Base
  • Avalanche

2. ChainLink Automation

Automation Workflow:

flowchart TD
    A[ChainLink Keeper Network] --> B{Check Upkeep}
    B -->|Auction ended?| C[Settle Auction]
    B -->|Payment expired?| D[Return to Sender]
    B -->|Price stale?| E[Update Feeds]
    B -->|Gas pool low?| F[Refill Pool]
    
    C --> G[Transfer NFT]
    C --> H[Transfer Payment]
    C --> I[Post to X]
    
    D --> J[Release Escrow]
    D --> I
    
    E --> K[Update Cache]
    
    F --> L[Distribute Funds]
    
    style A fill:#375bd2
    style C fill:#10b981
    style D fill:#f59e0b
Loading

Automated Tasks:

  • Auction settlement at expiration time
  • Payment expiry (unclaimed after 30 days returns to sender)
  • Periodic price feed updates for multi-currency support
  • Gas fee compensation distribution

Upkeep Configuration:

{
  name: "NFT Auction Settlement",
  type: "time-based",
  interval: 3600, // Check every hour
  performGasLimit: 500000,
  checkData: "0x" // Custom logic in performUpkeep
}

3. ChainLink Functions

Off-Chain Computation:

  • X API verification: Confirm tweet authorship and content
  • Social graph validation: Verify account ownership
  • Reputation scoring: Calculate trust metrics based on account history
  • Price aggregation: Multi-source price feeds for auction valuations

Example Function:

// Verify Twitter account ownership
const verifyTwitterAccount = Functions.makeHttpRequest({
  url: "https://api.twitter.com/2/users/by",
  params: { usernames: twitterHandle },
  headers: { Authorization: `Bearer ${secrets.twitterToken}` }
});

4. Data Feeds

Price Oracle Integration:

  • ETH/USD, MATIC/USD, USDC/USD feeds
  • Real-time conversion for multi-currency payments
  • Auction reserve price validation
  • Gas fee calculation in USD

User Stories and Workflows

Epic 1: Send Crypto via Tweet

As a crypto user, I want to send cryptocurrency to someone by tweeting, so that I can pay people without knowing their wallet address.

Acceptance Criteria:

  • User can compose tweet with payment command syntax
  • Bot validates transaction within 2 minutes
  • Funds are escrowed on-chain with tweet reference
  • Recipient receives tweet notification
  • Transaction appears in sender's dashboard
  • Sender can cancel within 5-minute window

Technical Requirements:

  • Real-time X API monitoring via webhooks
  • Natural language parsing for payment commands
  • Multi-signature wallet for bot operations
  • Event emission for frontend updates

Epic 2: Claim Crypto Payment

As a recipient, I want to claim cryptocurrency sent to me via Twitter, so that I can access funds without prior blockchain knowledge.

Workflow:

  1. User sees tweet mention from @SocialChainBot
  2. Clicks dashboard link in tweet
  3. Authenticates with X OAuth 2.0
  4. System presents wallet options:
    • Connect existing wallet (MetaMask, WalletConnect)
    • Create new embedded wallet (MPC/AA)
    • Use custodial solution (for first-time users)
  5. Binds wallet address to X account
  6. Reviews pending payments (all chains)
  7. Selects claim network (if cross-chain)
  8. Signs claim transaction
  9. Receives funds in wallet

Security Considerations:

  • Twitter OAuth token validation
  • Wallet address binding verification
  • One-time claim per payment
  • Fraud detection for suspicious patterns

Epic 3: Create NFT Auction

As an NFT owner, I want to auction my NFT through Twitter, so that I can reach buyers in my social network.

Pre-Conditions:

  • User has connected wallet to dashboard
  • NFT is verified on supported chain
  • User has approved NFT contract

Auction Creation Steps:

  1. User navigates to Dashboard > Create Auction
  2. Selects NFT from wallet (displays in gallery)
  3. Sets auction parameters:
    • Starting price (ETH/MATIC/USDC)
    • Reserve price (optional)
    • Duration (6h, 12h, 24h, 48h, 7d)
    • Buy-now price (optional)
  4. Previews auction tweet template
  5. Confirms transaction (NFT transfer to escrow)
  6. System posts auction tweet with:
    • NFT image and metadata
    • Starting price and duration
    • How to bid instructions
    • Live auction link

Auction Tweet Format: 🎨 NFT Auction Live!

[NFT Image]

Collection: [Name] Token ID: #[ID] Starting Bid: [X] ETH Ends: [Date/Time]

Reply "bid [amount]" to place a bid!

Track live: [dashboard link]

#NFT #Auction

Epic 4: Bid on NFT Auction

As a collector, I want to bid on NFT auctions through Twitter replies, so that I can participate without leaving my feed.

Bidding Process:

  1. User sees auction tweet in timeline
  2. Clicks to view NFT details
  3. Decides to bid
  4. Replies to auction tweet: "@SocialChainBot bid 2.5 ETH"
  5. Bot validates:
    • Bid meets minimum increment (5-10%)
    • User has connected wallet with sufficient balance
    • Auction still active
  6. Smart contract:
    • Locks bidder's funds
    • Releases previous bidder's funds
    • Updates auction state
    • Emits event
  7. Bot replies to bid tweet:
    • Confirmation message
    • Current highest bid
    • Time remaining
  8. Dashboard updates in real-time

Edge Cases:

  • Bid sniping protection (5-minute extension if bid in last 5 minutes)
  • Failed transaction handling
  • Concurrent bid resolution
  • Wallet disconnection during auction

Technical Specifications

X API Integration

Required Endpoints:

Endpoint Purpose Rate Limit
POST /2/tweets Post auction updates, confirmations 300 per 15 min
GET /2/tweets/search/recent Monitor payment/bid commands 450 per 15 min
GET /2/users/by/username Verify user identity 300 per 15 min
POST /2/tweets/:id/replies Thread auction updates 300 per 15 min

Table: X API v2 endpoints usage

Authentication:

  • OAuth 2.0 Authorization Code with PKCE for user context
  • App-only Bearer Token for bot operations
  • Webhook subscriptions for real-time tweet monitoring

Tweet Parsing Rules:

const PAYMENT_REGEX = /@SocialChainBot send (\d+\.?\d*) (\w+) to @(\w+)/i;
const BID_REGEX = /@SocialChainBot bid (\d+\.?\d*) ?(\w+)?/i;
const AUCTION_REGEX = /@SocialChainBot auction (\w+):(\d+) starting (\d+\.?\d*) (\w+), (\d+)h/i;

Database Schema

Entity Relationship Diagram:

erDiagram
    USERS ||--o{ PAYMENTS : sends
    USERS ||--o{ PAYMENTS : receives
    USERS ||--o{ AUCTIONS : creates
    USERS ||--o{ BIDS : places
    AUCTIONS ||--o{ BIDS : contains
    
    USERS {
        int id PK
        varchar twitter_handle UK
        varchar twitter_id UK
        varchar wallet_address
        timestamp created_at
        timestamp last_login
        int reputation_score
    }
    
    PAYMENTS {
        int id PK
        varchar payment_hash UK
        varchar sender_address FK
        varchar recipient_twitter FK
        decimal amount
        varchar token_address
        int source_chain
        int destination_chain
        varchar tweet_id
        boolean claimed
        timestamp expires_at
    }
    
    AUCTIONS {
        int id PK
        int auction_id UK
        varchar nft_contract
        varchar token_id
        varchar seller_address FK
        varchar tweet_id
        decimal highest_bid
        varchar highest_bidder FK
        timestamp end_time
        boolean settled
    }
    
    BIDS {
        int id PK
        int auction_id FK
        varchar bidder_address FK
        decimal amount
        varchar tweet_id
        varchar tx_hash
        timestamp created_at
    }
Loading

Users Table

CREATE TABLE users (
  id SERIAL PRIMARY KEY,
  twitter_handle VARCHAR(15) UNIQUE NOT NULL,
  twitter_id VARCHAR(255) UNIQUE NOT NULL,
  wallet_address VARCHAR(42),
  created_at TIMESTAMP DEFAULT NOW(),
  last_login TIMESTAMP,
  reputation_score INTEGER DEFAULT 0
);

Payments Table

CREATE TABLE payments (
  id SERIAL PRIMARY KEY,
  payment_hash VARCHAR(66) UNIQUE NOT NULL,
  sender_address VARCHAR(42) NOT NULL,
  recipient_twitter VARCHAR(15) NOT NULL,
  amount DECIMAL(18,8) NOT NULL,
  token_address VARCHAR(42) NOT NULL,
  source_chain INTEGER NOT NULL,
  destination_chain INTEGER,
  tweet_id VARCHAR(255) NOT NULL,
  claimed BOOLEAN DEFAULT FALSE,
  claimed_at TIMESTAMP,
  expires_at TIMESTAMP,
  created_at TIMESTAMP DEFAULT NOW()
);

Auctions Table

CREATE TABLE auctions (
  id SERIAL PRIMARY KEY,
  auction_id INTEGER UNIQUE NOT NULL,
  nft_contract VARCHAR(42) NOT NULL,
  token_id VARCHAR(78) NOT NULL,
  seller_address VARCHAR(42) NOT NULL,
  tweet_id VARCHAR(255) NOT NULL,
  start_price DECIMAL(18,8) NOT NULL,
  reserve_price DECIMAL(18,8),
  highest_bid DECIMAL(18,8),
  highest_bidder VARCHAR(42),
  end_time TIMESTAMP NOT NULL,
  settled BOOLEAN DEFAULT FALSE,
  created_at TIMESTAMP DEFAULT NOW()
);

Bids Table

CREATE TABLE bids (
  id SERIAL PRIMARY KEY,
  auction_id INTEGER REFERENCES auctions(id),
  bidder_address VARCHAR(42) NOT NULL,
  amount DECIMAL(18,8) NOT NULL,
  tweet_id VARCHAR(255) NOT NULL,
  tx_hash VARCHAR(66),
  created_at TIMESTAMP DEFAULT NOW()
);

Security Considerations

Smart Contract Security

  1. Reentrancy Protection: Use OpenZeppelin's ReentrancyGuard on all fund transfer functions
  2. Access Control: Role-based permissions for admin functions (pause, upgrade)
  3. Rate Limiting: Maximum payments per user per day to prevent spam
  4. Time Locks: 24-hour delay on contract upgrades
  5. Audit Requirements: Third-party security audit before mainnet deployment

Social Attack Vectors

Impersonation Prevention:

  • Verify Twitter account ownership via OAuth token
  • Store Twitter ID (not handle) as primary identifier
  • Display verified badge status in dashboard
  • Warning system for recently created accounts

Scam Protection:

  • Minimum account age requirement (30 days)
  • Tweet activity threshold (10+ tweets)
  • Follower count consideration for large transactions
  • Community reporting mechanism

Cross-Chain Security

CCIP Security Features:

  • Multi-signature validation on source and destination[6]
  • Rate limiting per token per chain
  • Manual override for stuck transactions
  • Insurance fund for failed cross-chain transfers

Gas Optimization Strategy

Sponsored Transactions

Problem: New users shouldn't pay gas to claim payments

Solution: ERC-4337 Account Abstraction + Paymaster

contract ClaimPaymaster {
    function validatePaymasterUserOp(
        UserOperation calldata userOp,
        bytes32 userOpHash,
        uint256 maxCost
    ) external returns (bytes memory context, uint256 validationData) {
        // Sponsor claim transactions up to $5 USD in gas
        require(maxCost <= calculateMaxGas(5), "Gas too high");
        return ("", 0);
    }
}

Sponsored Actions:

  • First claim per user (lifetime)
  • Claims under $100 value
  • NFT auction settlements

Revenue Model:

  • 1% platform fee on claimed payments
  • 2.5% auction settlement fee
  • Fee covers gas sponsorship costs

User Experience Design

Tweet Command Syntax

Design Principles:

  • Natural language patterns
  • Forgiving parsing (ignore case, extra spaces)
  • Clear error messages in replies
  • Examples in bot bio

Payment Commands:

Command Example
Basic send @SocialChainBot send 10 USDC to @alice
With message @SocialChainBot send 0.1 ETH to @bob "for coffee"
Cross-chain @SocialChainBot send 50 USDC to @carol on Polygon
Multi-recipient @SocialChainBot send 5 USDC to @alice, @bob, @carol

Table: Payment command variations

Auction Commands:

Command Example
Create auction @SocialChainBot auction 0x123:456 starting 1 ETH, 24h
Place bid @SocialChainBot bid 1.5 ETH
Buy now @SocialChainBot buy now
Cancel auction @SocialChainBot cancel auction

Table: Auction command variations

Dashboard UI/UX

Navigation Structure: Dashboard ├── Overview │ ├── Wallet Balance (multi-chain) │ ├── Pending Payments │ └── Active Auctions ├── Payments │ ├── Received (to claim) │ ├── Sent (pending/completed) │ └── Transaction History ├── Auctions │ ├── My Auctions (created) │ ├── My Bids (participating) │ └── Create New Auction ├── NFTs │ ├── Portfolio View │ └── Import NFT └── Settings ├── Connected Wallets ├── Twitter Account ├── Notifications └── Privacy

Key UI Components:

  • Payment Card: Shows sender, amount, timestamp, claim button, tweet preview
  • Auction Card: NFT image, current bid, time remaining, bid history, place bid CTA
  • Multi-Chain Selector: Network switcher with balance display
  • Transaction Timeline: Chronological feed with tweet context

Roadmap and Milestones

Development Timeline

Gantt Chart Overview:

gantt
    title SocialChain Development Roadmap
    dateFormat  YYYY-MM-DD
    section Phase 1 - MVP
    Smart Contracts           :a1, 2026-02-04, 5d
    X Bot Integration        :a2, 2026-02-06, 4d
    Dashboard Setup          :a3, 2026-02-08, 5d
    Testing                  :a4, 2026-02-12, 2d
    
    section Phase 2 - CCIP
    CCIP Integration         :b1, 2026-02-15, 4d
    Multi-chain Deploy       :b2, 2026-02-17, 3d
    Cross-chain UI           :b3, 2026-02-19, 3d
    
    section Phase 3 - Auctions
    Auction Contracts        :c1, 2026-02-22, 4d
    Automation Setup         :c2, 2026-02-24, 3d
    Auction UI               :c3, 2026-02-26, 4d
    
    section Phase 4 - Polish
    Functions Integration    :d1, 2026-03-01, 3d
    Security Audit           :d2, 2026-03-03, 4d
    Demo Video               :d3, 2026-03-06, 2d
    Documentation            :d4, 2026-03-04, 4d
Loading

Phase 1: MVP (Week 1-2)

  • Smart contracts deployed on testnet (Polygon Mumbai, Arbitrum Goerli)
  • Basic payment escrow with single-chain support
  • X bot monitoring payment commands
  • Simple claim dashboard (wallet connect + claim UI)
  • Twitter OAuth integration

Deliverable: Users can send/receive USDC on Polygon testnet

Phase 2: CCIP Integration (Week 3)

  • Integrate ChainLink CCIP for cross-chain transfers
  • Deploy contracts on Ethereum, Arbitrum, Base testnets
  • Multi-chain claim flow in dashboard
  • Cross-chain transaction tracking

Deliverable: Cross-chain payments working across 4+ testnets

Phase 3: NFT Auctions (Week 4)

  • NFT auction smart contracts
  • ChainLink Automation integration for settlement
  • Auction creation UI
  • Bidding via Twitter replies
  • Real-time auction updates

Deliverable: End-to-end NFT auction on testnet

Phase 4: Polish & Security (Week 5)

  • ChainLink Functions for X API verification
  • Gas optimization and batch processing
  • Security audit preparation
  • Error handling and edge cases
  • Demo video production
  • Documentation and README

Deliverable: Production-ready hackathon submission

Success Metrics

Hackathon Judging Criteria

Criteria Our Approach
ChainLink Integration 4 services used (CCIP, Automation, Functions, Data Feeds)
Innovation First social-native cross-chain payment + auction platform
Technical Complexity Multi-chain architecture, real-time social integration, AA
User Experience Zero-friction onboarding, familiar social interface
Real-World Utility Solves actual payment discovery and NFT liquidity problems
Completeness Full working demo with documentation

Table: Alignment with judging criteria

User Adoption Metrics

Phase 1 Goals (Testnet):

  • 100+ unique users
  • 500+ transactions
  • 50+ NFT auctions created
  • 200+ auction bids

Phase 2 Goals (Mainnet, if launched):

  • 5,000 users in first month
  • $100K+ transaction volume
  • 500+ active auctions
  • <30 second average claim time

Risk Analysis and Mitigation

Technical Risks

Risk Probability Mitigation
X API rate limits High Implement queue system, multiple bot accounts, webhook subscriptions
CCIP message delays Medium Clear user communication, fallback to single-chain mode
Smart contract bugs Medium Comprehensive testing, audit, bug bounty
Gas price spikes High Dynamic gas limits, user warnings, transaction batching

Table: Technical risk mitigation

Social/Adoption Risks

  • Trust Issues: Users may not trust tweet-based payments
    • Mitigation: Clear escrow explanations, transaction receipts, community testimonials
  • Spam Potential: Bot could be abused for spam
    • Mitigation: Rate limiting, account age requirements, community reporting
  • Regulatory Uncertainty: Financial services via social media unclear legally
    • Mitigation: Clear ToS, KYC for large transactions, legal consultation

Competitive Landscape

Existing Solutions:

  • Suku Wallet: Social crypto payments, no cross-chain or auctions[20]
  • Twitter/X native crypto: Rumored but not implemented[23]
  • Traditional NFT marketplaces: No social integration

Our Differentiation:

  • Cross-chain native (via CCIP)
  • Zero-setup receiving (claim later model)
  • Social-first auctions (discovery in timeline)
  • ChainLink security (institutional-grade infrastructure)

Future Enhancements

Post-Hackathon Features

  1. Subscription Payments: Recurring crypto payments via tweets
  2. Group Payments: Split bills or crowdfunding campaigns
  3. Conditional Payments: Escrow release based on ChainLink Functions verification
  4. NFT Lending: Collateralize NFTs for loans via social posting
  5. Social Reputation: On-chain reputation scores from payment history
  6. Multi-Platform: Expand to Discord, Telegram, Farcaster
  7. Fiat On-Ramps: Direct credit card to crypto via tweet
  8. DAO Governance: Community-driven feature prioritization

Integration Opportunities

Potential Partnerships:

  • X (Twitter): Official integration as crypto payment layer
  • NFT Platforms: White-label social auction tools for existing marketplaces
  • Creator Economy: Monetization tools for influencers and content creators
  • DeFi Protocols: Social interface for lending, staking, yields

Development Resources Required

Team Structure

graph TD
    A[Project Lead/PM] --> B[Smart Contract Dev]
    A --> C[Backend Engineer]
    A --> D[Frontend Dev]
    A --> E[Designer]
    
    B --> F[Solidity + ChainLink]
    B --> G[Contract Testing]
    
    C --> H[Node.js API]
    C --> I[X Integration]
    C --> J[Database Design]
    
    D --> K[Next.js 15 + React 19]
    D --> L[Web3 Hooks]
    D --> M[UI Components]
    
    E --> N[Dashboard UX]
    E --> O[Brand Assets]
    
    style A fill:#f59e0b
    style B fill:#10b981
    style C fill:#3b82f6
    style D fill:#8b5cf6
    style E fill:#ec4899
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Team Composition (Recommended)

  • 1x Smart Contract Developer (Solidity, ChainLink)
  • 1x Backend Engineer (Node.js, X API, databases)
  • 1x Frontend Developer (Next.js 15, React 19, Web3 integration)
  • 1x Designer (UI/UX, brand identity)
  • 1x Product Manager (coordination, documentation)

Minimum Viable Team: 2-3 full-stack developers

Infrastructure Costs (Testnet Phase)

  • X API Elevated Access: Free tier (sufficient for hackathon)
  • RPC Nodes: Alchemy/Infura free tier
  • IPFS Storage: NFT.storage or Pinata free tier
  • Domain & Hosting: Vercel free tier
  • Database: Supabase free tier
  • ChainLink Services: Testnet (free)

Total Estimated Cost: $0 - $50 for domain

Development Tools

  • Hardhat for smart contract development
  • Foundry for advanced testing
  • ChainLink local development environment
  • Postman for API testing
  • Figma for design
  • GitHub for version control
  • Discord for team communication

Submission Requirements

Hackathon Deliverables

  1. 3-5 Minute Video Demo

    • Product walkthrough
    • Send payment via tweet
    • Claim in dashboard
    • Create and bid on NFT auction
    • ChainLink integration highlights
    • Team introduction

  2. Public GitHub Repository

    • All source code
    • Comprehensive README
    • Setup instructions
    • Smart contract addresses
    • X bot credentials (sanitized)

  3. README Documentation

    • Project overview
    • ChainLink services used with file references
    • Installation and deployment guide
    • Architecture diagrams
    • API documentation
    • Known limitations
    • Future roadmap

  4. Live Demo

    • Deployed on testnet
    • Accessible dashboard URL
    • Active X bot account
    • Sample transactions available

Conclusion

SocialChain represents a paradigm shift in how users interact with blockchain technology. By embedding crypto payments and NFT trading directly into social media, we eliminate the friction that prevents mainstream adoption while leveraging ChainLink's enterprise-grade infrastructure for security and cross-chain interoperability.

The platform addresses real pain points in the creator economy, social commerce, and NFT markets while providing a novel use case for ChainLink's full suite of decentralized services. This project has strong potential to win the hackathon and evolve into a production service that onboards millions to Web3.

Next Steps:

  1. Team formation and role assignment
  2. Development environment setup
  3. Smart contract architecture finalization
  4. Sprint planning for 5-week timeline
  5. X Developer account application

Let's build the future of social crypto together! 🚀

Appendices

Appendix A: Smart Contract Interfaces

Full interface specifications available in GitHub repository

Appendix B: X API Rate Limits

Detailed rate limit analysis and optimization strategies

Appendix C: ChainLink Integration Code Examples

Complete integration examples for CCIP, Automation, and Functions

Appendix D: Security Audit Checklist

Comprehensive security review checklist for pre-deployment

References

[1] Chromion: A Chainlink Hackathon. (2025). Hackathon requirements and prize structure. https://chromion-chainlink-hackathon.devfolio.co

[2] Chainlink. (2024). Block Magic Hackathon announcement. https://chainlinktoday.com/chainlink-announces-block-magic-hackathon-with-over-400k-in-prizes/

[3] Cyfrin Updraft. (2025). Chainlink CCIP fundamentals. https://updraft.cyfrin.io/courses/chainlink-fundamentals/chainlink-ccip-tokens/ccip

[4] Cointelegraph. (2024). Chainlink debuts new protocol aimed at boosting cross-chain interoperability. https://cointelegraph.com/news/chainlink-protocol-boost-cross-chain-interoperability

[5] QuickNode. (2024). Cross-Chain Interoperability Protocol (CCIP) by Chainlink. https://www.quicknode.com/builders-guide/tools/ccip-by-chainlink

[6] Chainlink. (2024). Cross-Chain Interoperability Protocol (CCIP). https://chain.link/cross-chain

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