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.
IPchain is a block chain product for the application in the field of intellectual property. Launched in October, 2016, after months of market analysis, technical solutions research, and communication with experts in the field of intellectual property, the technical basis of IP Chain was determined to be the block chain technology based on the model of UTXO, which is similar to Bitcoin network. Through adopting Consensus Mechanism of DPOC (one of the improved solutions of DPOS) and with reference to the transaction model for the characteristic of products in the field of intellectual property, IPC Chain aims at providing a flexible and rigorous solution of intellectual property block chain.