Avalanche is a high-performance Layer-1 blockchain designed for scalable, low-latency smart contracts and asset issuance. Launched in 2020, it targets the constraints of earlier L1s by combining a novel Snow consensus family with a modular subnet architecture. By enabling custom, interoperable chains with near-instant finality and predictable fees, Avalanche gives builders a flexible base layer for DeFi, gaming, and enterprise use cases – powering a growing ecosystem of application-specific networks secured by a shared, capital-efficient protocol.