Ethereum client teams are testing an opt-in fast confirmation mechanism that could cut the time some layer-2 networks and exchanges wait to recognize mainnet deposits to about 13 seconds.
The proposed Fast Confirmation Rule (FCR) would reduce “deposit time from Ethereum L1 to L2s or exchanges to about 13 seconds, an 80-98% reduction for most L2s and exchanges,” Ethereum researcher Julian Ma wrote on X.
Most users today rely on canonical bridges, where transfers typically wait for multiple block confirmations or full finality, a process that can…

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