QuickNode Opens Ethereum Fast Confirmation Beta to Mainnet RPC Users

QuickNode opened a beta Nov. 4 for Ethereum’s Fast Confirmation Rule on mainnet RPC endpoints, giving developers access to faster block confirmations through the safe tag without changing Ethereum’s network. Developers can enable FCR on a mainnet endpoint and continue querying the tag. A fast-confirmed block is estimated to be available in about 13 seconds. That estimate covers block confirmation, not full finality or a guaranteed completion time for a bridge transfer. Ethereum slots last 12 seconds, while network finality takes at least about 13 minutes. FCR uses validator attestations to identify blocks before the network reaches finality. The rule depends on two conditions: no more than 25% of validators are Byzantine, and honest validators’ attestations arrive by the end of a slot.

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