Waterfall: Salto Collores. BFT Based PoS on BlockDAG

This paper describes a new version of the Waterfall network protocol that changes the operation of the coordination network to a BFT-based PoS, thus adding deterministic finality. A two-layer network construction model is proposed: a blockDAG network and a coordination network, where the blockDAG network is designed for transaction propagation, and the coordination network is intended for achieving consensus.