Horizen is an inclusive ecosystem where everyone is empowered and rewarded for their contributions. Horizen’s massively scalable platform enables businesses and developers to quickly and affordably create their own public or private blockchains utilizing the largest node network in the industry. Horizen’s Sidechain SDK provides all necessary components for easy and fast deployment of a fully customizable blockchain. Horizen's native cryptocurrency, ZEN, is a mineable PoW coin currently trading on exchanges including Bittrex, Binance, and Changelly. ZEN is integrated on major wallets including Horizen's flagship app, Sphere by Horizen, a multifunctional wallet that serves as an interface with most Horizen products and services.
DDK is a community platform that aims to create economic opportunities through the development of blockchain solutions. Since 2015, the DDK community claims to have contributed to a number of blockchain platforms.The DDK platform uses the Delegated Proof of Stake (DPoS) mechanism within its core. According to DDK, one of the advantages of a DPoS blockchain is that it depends on community members to participate in the maintenance and security of the platform so that each member’s participation provides benefit for all.