Kadena is a proof-of-work blockchain that combines the PoW consensus mechanism from Bitcoin with directed acyclic graph (DAG) principles to offer a scalable version of Bitcoin. Kadena claims it can provide the security of Bitcoin while being able to offer unparalleled throughput that makes the blockchain usable to enterprises and entrepreneurs alike. Kadena's unique infrastructure is decentralized and built for mass adoption because of its multi-chain approach. Kadena promises industrial scalability that can support global financial systems and can be scaled as necessary. It also vows to remain energy-efficient at scale and deliver more transactions with the same energy input, another difference to Bitcoin.