1

Graph 

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    A[User Registration and Login] --> B[Wallet Connection]
    B --> C[Digital Portfolio Management]
    C --> D[Listing a Digital Portfolio]
    D --> E[Browsing and Bidding]
    E --> F[Real-Time Data Display]
    F --> G[Payment Processing]
    G --> H[Token Transfer]

subgraph Frontend
        A
        B
        C
        D
        E
        F
        G
        H
    end

subgraph Backend
        I[Node.js Server]
        J[Stripe Integration]
        K[CoinGecko API]
        L[Smartest]
    end

    A -->|Sends data| I
    B -->|Sends data| I
    C -->|Sends data| I
    D -->|Records on blockchain| L
    E -->|Records on blockchain| L
    F -->|Fetches data| K
    G -->|Processes payment| J
    H -->|Transfers tokens| L