Sun. May 9th, 2021
PBC, Free TON House, Wiki

BCP (block consensus protocol) is a high-level part of the TON protocol family that operates on top of the catchain protocol. Its task is to achieve consensus (BFT) in the validator groups about which block will be accepted in the masterchain or the shardchain.

The protocol uses software running on the validator nodes that is responsible for creating and validating blocks.