Introduction to Smart Contracts

Smart contracts are self-executing contracts with terms directly written into code. They run on blockchain networks, automatically executing transactions when predetermined conditions are met. Think of them as digital vending machines: input the right conditions, and they automatically perform the programmed actions.

Core Concepts

• Immutable: Once deployed, contract code cannot be changed
• Transparent: All transactions are publicly verifiable
• Automated: Execute automatically when conditions are met
• Decentralized: Run on blockchain networks without central control

How Arthur Labs Uses Smart Contracts

Our ecosystem implements several types of smart contracts:

Commerce Contracts

contract PurchaseContract {
    address public buyer;
    address public seller;
    uint256 public price;
    bool public delivered;

    function confirmDelivery() public {
        require(msg.sender == buyer);
        delivered = true;
        // Release payment to seller
    }
}

These contracts:

• Hold payment in escrow
• Verify product delivery
• Release funds automatically
• Store transaction history

Factory Contracts

Generate new contracts for:

• Product listings
• Service agreements
• Delivery tracking
• Payment processing

Example scanner URLs:

• Primary Network: https://etherscan.io/address/<contract_address>
• Test Network: https://testnet.etherscan.io/address/<contract_address>

Resources

For more information:

• Arthur Labs Documentation
• Smart Contract Codebase