Orbitcoin is a PoW/PoS coin that is the first coin to implement 0% PoS staking. Orbitcoin's goal is to be used on the normal Internet and darknets like I2P/Tor. At the moment, Orbitcoin works with SOCKS over I2P/Tor. Native support for I2P will be in place soon. Orbitcoin is one of the oldest PoW/PoS altcoins that was launched on the 30th of July 2013. Orbitcoin is founded by Ghostlander, a male located somewhere in Europe.
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.