Like bitcoinwisdom has all that data, where do they get it. Like is there an 'official' site like the 'blockchain' maybe or whatever that I'm supposed to get this data? I want to use python to obtain whatever data is necessary to compute stuff like the moving average etc. I found python-bitcoin, but that seems just for making/accepting payments. What I want is to get info like to create charts and stuff. If there's no official place am I supposed to just scrape content from wherever?