Most of my knowledge is from using steem, from being a witness, from developing apps for the Blockchain and from other apps that visualize some of it. The actual steem source is something I did not yet have the time to go through.

If you have any questions, ask me and I can try to answer them and/or point you to good resources where you can read about them.

(if you like what I do and feel I am beneficial to the Blockchain, vote me as a witness 😉)