<ul><li>Blockchain is a global database that is immutable and updated via code (smart contracts) for trustless transactions, eliminating the need for middlemen.</li><li>Ethereum introduced smart contracts, allowing developers to create code that runs as programmed with real-world applications like automated payments and secure voting systems.</li><li>Ethereum faced issues like high gas fees and network congestion, leading to the development of Layer 2 solutions like Arbitrum.</li><li>Arbitrum, a Layer 2 scaling solution for Ethereum, offers faster transaction speeds, lower gas fees, full compatibility with Ethereum tools, and high security, making it ideal for building projects like in the Arbitrum Hackathon.</li></ul>

WTF is Blockchain & Why It’s Not Just Hype (Especially on Arbitrum)

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