The shorter block times from SIMD-0525's 200-millisecond upgrade give wallets and applications less time to use a recent blockhash, which is a reference included in Solana transactions to prevent them from being replayed

Base blockchains that settle transactions on their own network, such as Ethereum, Solana, and Avalanche, competing on security, throughput, decentralization, and developer ecosystems.

Approaches to processing more transactions without sacrificing security or decentralization, spanning rollups, sharding, data compression, and faster consensus designs.