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.
Pinkcoin is an x11 PoW/PoS cryptocurrency with a total coin supply of 380 million coins. The Proof-of-Work period lasted for the first 20,000 block that took 7 days to complete. There is a 1% stake interest per year. Pinkcoin has no pre-mine nor IPO though there is some indication of instamine for the first 186 blocks as noted by a code audit conducted.