Consensus Mechanism
The rules a blockchain's participants follow to agree on a single, shared transaction history without a central authority.
- glossary
A consensus mechanism is the set of rules a blockchain's participants follow to agree on a single, shared history of transactions without a central authority deciding what counts as valid. It solves two problems at once: preventing the same unit of value from being spent twice, and letting mutually distrusting participants — including some who may act dishonestly — settle on one canonical ledger. Every mechanism answers this by defining who gets to propose the next block and what stops an attacker from proposing many fake identities to seize control, a property known as Sybil resistance. Common designs include Proof of Work, which uses computational cost, and Proof of Stake, which uses an economic bond. On Ethereum and other chains, the consensus mechanism in place determines how quickly and how absolutely an on-chain asset transfer — including a tokenized domain sale — becomes final.
Related keywords
- consensus mechanism
- blockchain consensus
- sybil resistance
- proof of work
- proof of stake
- finality
Contributors
Namefi is a collective of engineers, designers, and operators who obsess over building tools that make managing your onchain domain names effortless.
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.