TLDR Tech / Crypto
Ethereum's Fast Confirmation Rule Cuts L1 Confirmation Times
The Fast Confirmation Rule (FCR) reduces Ethereum L1 confirmation times from roughly 13 minutes to approximately 13 seconds, an 80-98% improvement for most L2s and exchanges. FCR works by counting attestations rather than blocks and requires no hard fork. Consensus layer client teams are already implementing it, and nodes will run the rule automatically once deployed. The system assumes network synchrony and less than 25% adversarial stake, with a built-in fallback to finality-grade confirmation if conditions deteriorate. Exchanges, L2s, bridges, and solvers all stand to benefit from faster deposit times, reduced capital lockup, and a more efficient blob fee market.
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