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Sharding

A scaling technique that splits a blockchain's validation work across multiple parallel subsets of nodes instead of one.

FBFenwei BianAuthorVZVictor ZhouEditorJuly 2, 2026
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Sharding is a scaling technique that splits a blockchain's validation work across multiple parallel subsets of nodes, called shards, so that no single node has to process the entire network's transaction load. Vitalik Buterin frames it as a way to satisfy all three legs of the blockchain scalability trilemma—scalability, decentralization, and security—at once, by randomly sampling validators into committees that each verify a different shard in parallel rather than concentrating trust in a small group or a single chain. The technique that makes sharding safe without forcing every node to download every shard's full data is data availability sampling, where light nodes verify small random pieces of a shard's data instead of the whole thing; see data availability. Sharding is distinct from rollups, which scale by moving execution off-chain rather than by splitting the base chain's own validation work. For tokenized domains and other on-chain assets, a sharded base chain's throughput headroom matters most at the layer 2 level, where most everyday domain transactions actually settle.

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Contributors

Fenwei Bian

Software Developer & Writer • Namefi
Author

Fenwei Bian is a software developer in her thirties who spends her working hours in pull requests and her weekends with her hands in soil or sawdust. Years of open source on GitHub taught her that names are interfaces: a good one is clear, honest about what it does, and kind to whoever has to use it next.

She gardens because it rewards patience and punishes wishful thinking, and she does woodwork because a joint either fits or it doesn't. Both habits show up in how she writes about naming — measure twice, check the source, and don't sand over a rough spot and hope no one notices.

For Namefi she writes about how domain markets actually move, the practical trade-offs of tokenizing and flipping names, and picking a domain you'll still be glad you own in twenty years.

GitHub

Victor Zhou

Founder & Standards Editor • Namefi
Editor

Victor Zhou is a technology founder and standards editor focused on digital identity and trust. He founded Namefi, edits Ethereum Improvement Proposals, and previously led smart-contract architecture work at Google Labs.

His work sits at the intersection of naming, ownership, and the systems people use to establish identity online. That perspective makes him especially interested in the way names move between personal meaning, public recognition, and digital infrastructure.

For Namefi, Victor edits and writes about domains as durable digital identity: how names become ownable onchain assets, how tokenization changes custody and trust, and what naming can learn from the systems people use to establish identity online.

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