Bitcoin is blockchain protocol (C++ and python implementations). "You must have a background about C++".
I learned from:https://bitcoin.stackexchange.com

python implementations ----> https://bitcointalk.org/index.php?topic=94645.0.
Mastering Bitcoin [Reading]------> http://chimera.labs.oreilly.com/books/1234000001802/index.html
Youtube ------> https://www.youtube.com/watch?v=fOMVZXLjKYo
Online ------> https://bitcoin.stackexchange.com
you can ask here or reddit.com

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