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Merkle Tree

A tree of hashes that commits to a large dataset in one root hash, letting anyone verify a single item with a short proof.

FBFenwei BianAuthorVZVictor ZhouEditorJuly 2, 2026
  • glossary

A Merkle tree (or hash tree) repeatedly pairs and hashes data items — transactions, account balances, or other records — until a single hash, the Merkle root, represents the entire set. Bitcoin stores this root in every block header, and Ethereum stores three separate roots covering state, transactions, and receipts. The payoff is that proving one item belongs to the set only requires that item plus a short "Merkle branch" of sibling hashes, not the entire dataset — the technique behind lightweight (SPV) clients that verify a transaction without downloading the full blockchain. This same structure secures on-chain domain ownership: a tokenized domain's record is committed into the chain's state tree, so its ownership can be verified with a compact proof rather than a full copy of the ledger.

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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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