Layer 2 Scaling
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Technology
Scaling
Layer 2 (L2) is a collective term for off-chain scaling solutions that inherit the security of a Layer 1 blockchain while processing transactions faster and cheaper. Major categories include Optimistic Rollups (Arbitrum, Optimism) and ZK Rollups (StarkNet, zkSync).
Zero-Knowledge Proofs
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Technology
Cryptography
Zero-knowledge proofs (ZKPs) are cryptographic methods that allow one party to prove they know something without revealing what that thing is. In blockchain, they enable both privacy and scaling — proving off-chain computation is correct without re-executing it on-chain.