Modular Blockchain
A modular blockchain splits duties across specialized layers — one chain for execution, another for settlement, another for data availability — instead of
A modular blockchain splits duties across specialized layers — one chain for execution, another for settlement, another for data availability — instead of one “monolithic” chain doing everything. Ethereum’s rollup-centric roadmap is the flagship example.
Why it matters
Modularity is how blockchains scale without demanding supercomputer validators: each layer stays light enough for ordinary participants, which protects decentralization while throughput grows. The trade-off is complexity — bridges between layers become the new trust points to audit.
Modular vs monolithic
A monolithic chain (Solana-style) does execution, settlement, and data availability in one place: simpler, faster, but every validator must handle everything — pushing hardware requirements up and participation down. A modular stack splits the job so each layer stays verifiable on modest hardware. Neither is categorically “more decentralized”: monoliths concentrate validator power through hardware costs; modular stacks distribute it across layers but add bridge and sequencing trust points. Judge systems, not slogans — count independent operators at *every* layer.