Block Broadcast Time

Block broadcast time is the specific duration required for a newly created block to be successfully propagated from the creator to the rest of the network's validators or miners. This is a subset of overall network propagation delay and is critical for the speed of block finalization.

If the broadcast time is too high, it increases the risk that other miners will start working on the next block without having seen the previous one, leading to chain forks. Technologies like fiber-optic high-speed links and optimized peer-discovery protocols are used to minimize this time.

Reducing broadcast time is essential for enabling faster block times and higher transaction throughput in modern blockchain architectures.