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Using Portal network protocol for history-expiry

Summary by Ethereum Research
Finalized Chain History Portal subnetwork The Finalized Chain History is the subnetwork build on top of Portal wire protocol. Its goal is to provide decentralized storage of the finalized historical Ethereum data. It assumes that nodes on the network are Execution Layer clients that store all historical headers locally. Nodes that are not Execution Layer clients will need a way to obtain block header for a given block number (in order to verify …
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Ethereum Research broke the news in on Sunday, June 22, 2025.
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