# F3 and GossipBFT: Fast Finality on Longest-Chain Protocols | Alejandro Ranchal-Pedrosa - Filecoin

- Channel: [Ethereum Denver](https://streameth.org/ethereum-denver)
- Date: 2024-10-09
- Duration: 31:04
- Topics: blockchain, web3, ethereum
- Watch: https://streameth.org/watch/yt-0XtqTn7RNk8
- YouTube: https://www.youtube.com/watch?v=0XtqTn7RNk8

## Description

We present F3, a finality component designed to bring fast finality to Filecoin. F3 leverages a novel consensus protocol, GossiPBFT,  that runs on the side and finalizes tipsets in tens of seconds instead of hours, while laying the basis for verifiable cross-chain bridging.

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