Some hacking resources:
coin
Lightning Network

 

Bitcoin:

 

Bitcoin.org    
https://bitcoin.org/en/bitcoin-for-developers

https://bitcoin.org/en/developer-guide

https://github.com/bitcoinbook/bitcoinbook
https://lopp.net/bitcoin.html

 

More Bitcoin full-nodes:

 

Golang: https://github.com/btcsuite/btcd

Client-side JS: https://bitcoinjs.org/ ,

NodeJS: https://bitcore.io/guides

 

Bitcoin third party API's

 

for Python, PHP, jQuery and Node.js: https://www.blocktrail.com/api/docs

for Python, PHP, Java, .NET, Ruby: https://blockchain.info/api

 

Bitcoin blockchain api https://insight.is/

blockchain explorer: https://www.blocktrail.com/BTC

Bitcoin playground: https://bitcore.io/playground/

 

Colored Coins : assets on Bitcoin: 

 

http://coloredcoins.org/documentation/

 

Namecoin: decentralized DNS on Bitcoin's blockchain:

 

https://wiki.namecoin.info/index.php?title=Client_API
 

ZeroNet : Decentralized web browser using Namecoin and Torrents:

https://zeronet.readthedocs.io/en/latest/site_development/getting_started/

Machine payable web: https://21.co/learn/bitcoin-payable-api/#a-bitcoin-payable-api

Decentralized market-place: https://gist.github.com/drwasho/742505589f62f6aa98b4

Ethereum : Coin supporting a platform and programming language for creating programmable monetary contracts and Daaps:

https://www.blockcypher.com/dev/ethereum/ https://developers.coinbase.com/api/v2 https://www.blockcypher.com/dev/ethereum/

 

Monero: https://getmonero.org/knowledge-base/developer-guides/

ZCash: https://github.com/zcash/zcash/blob/master/doc/payment-api.md

 

Sia: Decentralized Storage coin: https://sia.tech/ https://blog.sia.tech/api-quickstart-guide-f1d160c05235#.1rd0n5jqg