Crypto miner Marathon Digital (MARA) has announced that it has started mining Kaspa, an open-source, decentralized, and fully scalable Layer-1 protocol that uses proof-of-work as its consensus mechanism. Unlike Bitcoin, Kaspa uses BlockDAG (Directed Acyclic Graph), which can generate multiple blocks simultaneously. As of June 25, 2024, Marathon has mined 93 million KAS, currently worth around $15 million.