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.
CRYPTO20 is an autonomous crypto-only index fund that tracks the top 20 cryptocurrencies in the same way the S&P500 tracks the top 500 US company stocks. C20 is the fund’s token, and represents an investor’s share in the fund. Token-holders are able to liquidate the C20 token for their share of the underlying assets via the smart contract.