We see that a single chain topology has a tough tradeoff between throughput and security. In this article, we outline Umareum’s approach to use a block DAG topology coupled with proof of stake (PoW) to address these issues. One critical limitation for a single chain topology is that the network can only accept one single block at a time, so what if the network can somehow accept lots of blocks simultaneously? Not only does this help to increase the number of transactions being processed, but ...