What is the purpose of contract address?
Could you please elaborate on the significance of contract addresses in the realm of cryptocurrency? As a professional in this field, I'm keen to understand how they serve as the foundation for transactions and interactions within the blockchain ecosystem. How do contract addresses facilitate secure and transparent exchanges? And how do they contribute to the overall integrity and functionality of decentralized finance applications? I'm particularly interested in the role they play in ensuring the authenticity and legitimacy of transactions. Your insights would be greatly appreciated.