Blocksize
Also known as: Block Size Limit, Block Data Cap, Blockchain Capacity
The maximum amount of data that a block can contain, directly influencing transaction throughput and network performance.
Blocksize refers to the maximum data limit of a block in a blockchain. It defines how many transactions can be included in a single block and therefore affects network scalability, latency, and fees. For instance, Bitcoin's default blocksize is 1 MB, which sparked debates leading to the creation of Bitcoin Cash. Larger blocks allow more transactions per block but can increase centralization by making full nodes more resource-intensive. Protocols like Ethereum use dynamic limits (gas block limit) instead. Blocksize is a critical parameter in consensus design, especially when balancing decentralization and throughput.