The emergence of specialized roles such as searchers, builders, and proposers within MEV ecosystems has concentrated power over block construction among technically advantaged actors.

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In theory, the Ethereum Foundation notes that network miners or validators should get the full MEV amount... however, a large portion of the MEV is retrieved by independent network participants called 'searchers,' who run complex algorithms to detect profitable MEV opportunities
Searchers and miners play a key role in identifying and extracting opportunities from decentralized finance protocols
Validators increasingly rely on other entities like builders and searchers, who often have significant control over the block construction process

Related topics

Maximal Extractable Value (MEV)

Referenced by

Network and user-level impacts

Crypto

Data block