Smart contract platforms like Ethereum, Solana, Polkadot, and Avalanche are critical in powering decentralized applications (dApps) and automating agreements. Each platform offers unique technical strengths: Ethereum is the most established but faces scalability challenges, while Solana excels in transaction speed using Proof of History (PoH). Polkadot focuses on cross-chain interoperability through parachains, and Avalanche provides flexibility with customizable blockchains. Develop...