Avalanche's Snowman Consensus Delivers Sub-Second Finality with Scalable Validator Network

Avalanche's Snowman Consensus achieves sub-second finality by having validators query small groups of peers, rather than contacting the entire network at once.

This allows the system to converge on an answer in a fraction of a second, compared to minutes in other proof-of-stake protocols.

Snowman is part of Avalanche's Snow family of consensus protocols, which also includes Slush, Snowflake, and Snowball. Each layer adds more resistance to bad actors while keeping the same core idea: repeated random subsampling.