studying Bitcoin

https://github.com/bitcoinbook/bitcoinbook/blob/develop/book.asciidoc

https://github.com/bitcoin/bips

https://github.com/bitcoin/bips/blob/master/bip-0018.mediawiki

https://bitcoin.org/en/developer-guide#block-chain

https://en.bitcoin.it/wiki/Bitcoin_Core_0.11_(ch_1):_Overview

https://www.gitbook.com/@programmingblockchain

https://en.bitcoin.it/wiki/Category:Technical

https://en.bitcoin.it/wiki/Help:FAQ

https://en.bitcoin.it/wiki/Protocol_rules

https://en.bitcoin.it/wiki/Main_Page

https://en.bitcoin.it/wiki/Help:Introduction

http://www.michaelnielsen.org/ddi/how-the-bitcoin-protocol-actually-works/

https://bitcoinbook.info/wp-content/translations/cmn/book.pdf

https://arstechnica.com/tech-policy/2017/12/how-bitcoin-works/

http://www.youdzone.com/signature.html

http://www.righto.com/2014/02/bitcoins-hard-way-using-raw-bitcoin.html

https://arstechnica.com/information-technology/2013/10/a-relatively-easy-to-understand-primer-on-elliptic-curve-cryptography/

https://arstechnica.com/tech-policy/2017/12/bitcoin-a-beginners-guide/

https://www.gitbook.com/book/yeasy/blockchain_guide/details

https://www.raydbg.com/2018/Understand-Blockchain-and-Bitcoin/?from=groupmessage&isappinstalled=0

 

MATH

https://en.wikipedia.org/wiki/Elliptic-curve_cryptography

http://www.secg.org/sec1-v2.pdf