The simplest implementation of a blockchain would be about 100 lines of Java code (assuming simple CRC hash). It's a linked list where each node rehashes not only that node's data but also the hash from the prior node. I'm sorry, but that's the actual definition. You should send some snark towards this guy, since that's your core skillset: https://github.com/lhartikk/naivechain
We've banned this account for breaking the HN guidelines. Flamewars aren't welcome here, even from blockchain experts. We detached this subthread from https://news.ycombinator.com/item?id=14432952 and marked it off-topic.
And I'll just be using a VPN from now on, also, because I'm tired of you banning me every time some dickhead tries to start something that I end up finishing for them.