What is the purpose of your coin? I presume it is just experimental to see how memory mining works? Interesting that you require the whole blockchain in memory to mine and it would be interesting to see what is going to happen once the blockchain sizes goes beyond the size of the average PCs memory. This will cause huge R/W load on HDDs and shorten the lifespan of SSDs considerably. Do yo have stats on HDD R/Ws for mining this coin if a portion is on the HDD?